{"id":10243,"date":"2026-11-05T09:00:00","date_gmt":"2026-11-05T09:00:00","guid":{"rendered":"https:\/\/pierretlambert.com\/?p=10243"},"modified":"2026-11-13T09:00:38","modified_gmt":"2026-11-13T09:00:38","slug":"test-sony-100-400-f4-5-gm","status":"publish","type":"post","link":"https:\/\/pierretlambert.com\/fr\/test-sony-100-400-f4-5-gm\/","title":{"rendered":"Test Sony 100-400 mm f\/4.5 GM : Mon Avis Terrain \u00e0 Tokyo (Un Autofocus Plus Rapide Que Moi)"},"content":{"rendered":"\n<p>J&rsquo;ai quelque chose de sp\u00e9cial dans mon sac. \u00c7a co\u00fbte moins cher que la Porsche gar\u00e9e derri\u00e8re moi, et \u00e7a procure beaucoup plus de plaisir \u00e0 un photographe : le nouveau <strong>Sony FE 100-400 mm f\/4.5 GM OSS<\/strong>, un t\u00e9l\u00e9objectif \u00e0 <strong>ouverture constante f\/4.5<\/strong>. Je l&rsquo;ai test\u00e9 dans les rues de Tokyo. Et tu vas me dire : il n&rsquo;y a pas beaucoup d&rsquo;animaux sauvages \u00e0 Tokyo. Non, mais j&rsquo;ai fait de la photo de rue avec, j&rsquo;ai mis l&rsquo;autofocus et toutes ses fonctionnalit\u00e9s \u00e0 l&rsquo;\u00e9preuve, et <strong>je suis simplement bluff\u00e9<\/strong>.<\/p>\n\n\n\n<p><strong>Si tu cherches un test du Sony 100-400 f\/4.5 GM et un avis honn\u00eate avant de l&rsquo;acheter, cet article est fait pour toi<\/strong> : son ergonomie bouton par bouton, ce que l&rsquo;autofocus a donn\u00e9 sur le terrain, des exemples de photos, son seul vrai d\u00e9faut, son prix, et pour qui il vaut vraiment le coup. <em>(Spoiler : le prix pique un peu.)<\/em><\/p>\n\n\n\t\t<div data-elementor-type=\"widget\" data-elementor-id=\"8169\" class=\"elementor elementor-8169\" data-elementor-post-type=\"elementor_library\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-13d74196 elementor-toc--minimized-on-tablet elementor-widget elementor-widget-table-of-contents\" data-id=\"13d74196\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;headings_by_tags&quot;:[&quot;h2&quot;],&quot;exclude_headings_by_selector&quot;:[],&quot;marker_view&quot;:&quot;numbers&quot;,&quot;no_headings_message&quot;:&quot;No headings were found on this page.&quot;,&quot;minimize_box&quot;:&quot;yes&quot;,&quot;minimized_on&quot;:&quot;tablet&quot;,&quot;hierarchical_view&quot;:&quot;yes&quot;,&quot;min_height&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;min_height_tablet&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;min_height_mobile&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]}}\" data-widget_type=\"table-of-contents.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-toc__header\">\n\t\t\t\t\t\t<h4 class=\"elementor-toc__header-title\">\n\t\t\t\tTable des mati\u00e8res\t\t\t<\/h4>\n\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-toc__toggle-button elementor-toc__toggle-button--expand\" role=\"button\" tabindex=\"0\" aria-controls=\"elementor-toc__13d74196\" aria-expanded=\"true\" aria-label=\"Open table of contents\"><i aria-hidden=\"true\" class=\"fas fa-chevron-down\"><\/i><\/div>\n\t\t\t\t<div class=\"elementor-toc__toggle-button elementor-toc__toggle-button--collapse\" role=\"button\" tabindex=\"0\" aria-controls=\"elementor-toc__13d74196\" aria-expanded=\"true\" aria-label=\"Close table of contents\"><i aria-hidden=\"true\" class=\"fas fa-chevron-up\"><\/i><\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<div id=\"elementor-toc__13d74196\" class=\"elementor-toc__body\">\n\t\t\t<div class=\"elementor-toc__spinner-container\">\n\t\t\t\t<i class=\"elementor-toc__spinner eicon-animation-spin eicon-loading\" aria-hidden=\"true\"><\/i>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<span class=\"embed-youtube\" style=\"text-align:center; display: block;\"><iframe class=\"youtube-player\" width=\"800\" height=\"450\" src=\"https:\/\/www.youtube.com\/embed\/rTGfd5KpUok?version=3&#038;rel=1&#038;showsearch=0&#038;showinfo=1&#038;iv_load_policy=1&#038;fs=1&#038;hl=fr-FR&#038;autohide=2&#038;wmode=transparent\" allowfullscreen=\"true\" style=\"border:0;\" sandbox=\"allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox\"><\/iframe><\/span>\n<\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Sony 100-400 f\/4.5 GM : ce qui change par rapport \u00e0 l&rsquo;ancien 100-400<\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"450\" src=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/sony-100-400-f4-5-gm-vs-100-400-f4-5-5-6.jpg?resize=800%2C450&#038;ssl=1\" alt=\"pierre t lambert avec le sony 100-400 f4.5 gm a tokyo\" class=\"wp-image-10215\" srcset=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/sony-100-400-f4-5-gm-vs-100-400-f4-5-5-6.jpg?w=800&amp;ssl=1 800w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/sony-100-400-f4-5-gm-vs-100-400-f4-5-5-6.jpg?resize=300%2C169&amp;ssl=1 300w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/sony-100-400-f4-5-gm-vs-100-400-f4-5-5-6.jpg?resize=768%2C432&amp;ssl=1 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p>Sony a d\u00e9j\u00e0 un <strong>100-400 \u00e0 ouverture variable<\/strong> (f\/4.5-5.6 GM), un objectif que les gens adorent. Ce nouveau 100-400 garde la m\u00eame plage de focales, mais il passe \u00e0 <strong>f\/4.5 sur toute la plage<\/strong> et il embarque la derni\u00e8re technologie d&rsquo;autofocus de Sony.<\/p>\n\n\n\n<p>Il est un petit peu plus lourd que l&rsquo;ancien, <strong>environ 400 g de plus<\/strong>, mais il reste plus l\u00e9ger qu&rsquo;un 200-600. Et surtout, il est extr\u00eamement rapide, avec une ergonomie tr\u00e8s agr\u00e9able. Je dois le dire : <strong>pour ces quelques centaines de grammes en plus, \u00e7a vaut largement le coup.<\/strong><\/p>\n\n\n\n<p>Je t&rsquo;explique son ergonomie, ce que j&rsquo;ai pu en faire sur le terrain, et tu trouveras des exemples de photos un peu plus bas.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Ergonomie : de 100 \u00e0 400 mm en un quart de tour<\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" decoding=\"async\" width=\"800\" height=\"450\" src=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/sony-100-400-f4-5-gm-bague-de-zoom-quart-de-tour.jpg?resize=800%2C450&#038;ssl=1\" alt=\"bague de zoom du sony 100-400 f4.5 gm\" class=\"wp-image-10217\" srcset=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/sony-100-400-f4-5-gm-bague-de-zoom-quart-de-tour.jpg?w=800&amp;ssl=1 800w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/sony-100-400-f4-5-gm-bague-de-zoom-quart-de-tour.jpg?resize=300%2C169&amp;ssl=1 300w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/sony-100-400-f4-5-gm-bague-de-zoom-quart-de-tour.jpg?resize=768%2C432&amp;ssl=1 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p>La bague principale, c&rsquo;est celle du zoom. Elle te fait passer <strong>de 100 \u00e0 400 mm en un quart de tour<\/strong>. Sur le terrain, \u00e7a fait une grosse diff\u00e9rence : tu zoomes tr\u00e8s vite, sans tendre la main jusqu&rsquo;au bout de l&rsquo;objectif. Un petit quart de tour, et ta main reste mobile.<\/p>\n\n\n\n<p>Par contre, j&rsquo;ai shoot\u00e9 plus d&rsquo;une demi-journ\u00e9e avec, sur mon A7R VI, et l&rsquo;objectif est un peu lourd : <strong>mon poignet commen\u00e7ait \u00e0 fatiguer.<\/strong> Mais ce n&rsquo;est pas un objectif pour faire de la photo de rue, je tiens \u00e0 le rappeler. <em>(C&rsquo;est moi qui ai voulu le promener dans les rues de Tokyo.)<\/em><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Une bague programmable et quatre boutons<\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" decoding=\"async\" width=\"800\" height=\"450\" src=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/sony-100-400-f4-5-gm-bague-programmable-boutons.jpg?resize=800%2C450&#038;ssl=1\" alt=\"commandes et bague programmable du sony 100-400 f4.5 gm\" class=\"wp-image-10219\" srcset=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/sony-100-400-f4-5-gm-bague-programmable-boutons.jpg?w=800&amp;ssl=1 800w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/sony-100-400-f4-5-gm-bague-programmable-boutons.jpg?resize=300%2C169&amp;ssl=1 300w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/sony-100-400-f4-5-gm-bague-programmable-boutons.jpg?resize=768%2C432&amp;ssl=1 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p>Nouveaut\u00e9 : <strong>une petite bague<\/strong> qui ne fait pas le tour complet, juste un petit mouvement. Par d\u00e9faut, elle fait passer la mise au point de l&rsquo;infini \u00e0 un point beaucoup plus proche, d&rsquo;un geste, pour \u00eatre rapide. Tu peux aussi lui donner la fonction de ton choix. Par exemple, <strong>le recadrage APS-C<\/strong> : tu passes de ton 400 mm directement \u00e0 600 mm. Tr\u00e8s pratique.<\/p>\n\n\n\n<p>Ensuite, il y a <strong>quatre petits boutons<\/strong>, ceux qu&rsquo;on conna\u00eet sur les t\u00e9l\u00e9objectifs Sony, que tu peux programmer. <strong>Perso, je les mets toujours en d\u00e9tection de sujet.<\/strong> Je t&rsquo;explique pourquoi un peu plus bas, parce que c&rsquo;est l\u00e0 que cet objectif m&rsquo;a le plus impressionn\u00e9.<\/p>\n\n\n\n<p>Programmer les boutons de l&rsquo;objectif et ceux du bo\u00eetier, choisir ta d\u00e9tection de sujet, r\u00e9gler ton autofocus : c&rsquo;est ce qui fait qu&rsquo;un appareil travaille pour toi, et pas contre toi. <strong>Pour tout configurer pas \u00e0 pas, j&rsquo;ai cr\u00e9\u00e9 <a href=\"https:\/\/pierretlambert.com\/sonymaster\" target=\"_blank\" rel=\"noreferrer noopener\">la Sony Alpha Masterclass<\/a><\/strong> : plus de 8 heures de vid\u00e9os en 4K, l&rsquo;autofocus avec la d\u00e9tection de sujet par IA, des modules d\u00e9di\u00e9s au A7 V et au A7R VI, et mes propres fichiers de r\u00e9glages \u00e0 charger dans ton appareil. Et si tu veux s\u00e9parer la mise au point du d\u00e9clenchement, lis aussi <a href=\"https:\/\/pierretlambert.com\/fr\/mise-au-point-back-button-focus\/\" target=\"_blank\" rel=\"noreferrer noopener\">mon article sur le back button focus<\/a>.<\/p>\n\n\n\n<p>Dernier d\u00e9tail sur le f\u00fbt : un petit switch r\u00e8gle <strong>la r\u00e9sistance de la bague de zoom<\/strong>, plus fluide ou plus dure. Utile pour que le zoom ne bouge pas tout seul quand tu as besoin que \u00e7a reste bien serr\u00e9.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Switchs, filtres \u00e0 tiroir et t\u00e9l\u00e9convertisseurs<\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"450\" src=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/sony-100-400-f4-5-gm-switchs-af-mf-limiteur-oss.jpg?resize=800%2C450&#038;ssl=1\" alt=\"switchs af mf full time dmf limiteur et oss du sony 100-400 f4.5 gm\" class=\"wp-image-10221\" srcset=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/sony-100-400-f4-5-gm-switchs-af-mf-limiteur-oss.jpg?w=800&amp;ssl=1 800w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/sony-100-400-f4-5-gm-switchs-af-mf-limiteur-oss.jpg?resize=300%2C169&amp;ssl=1 300w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/sony-100-400-f4-5-gm-switchs-af-mf-limiteur-oss.jpg?resize=768%2C432&amp;ssl=1 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p>La bague de mise au point est tr\u00e8s simple \u00e0 utiliser. Et tu retrouves tous les switchs dont on a l&rsquo;habitude :<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>AF \/ MF<\/strong>, pour passer en mise au point manuelle ;<\/li><li><strong>Full Time DMF<\/strong>, pour reprendre la main sur la bague \u00e0 tout moment ;<\/li><li><strong>le limiteur de mise au point<\/strong>, de Full ou de l&rsquo;infini \u00e0 4 m ;<\/li><li><strong>l&rsquo;OSS<\/strong>, la stabilisation, avec ses modes 1, 2 et 3.<\/li><\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"450\" src=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/sony-100-400-f4-5-gm-filtre-a-tiroir.jpg?resize=800%2C450&#038;ssl=1\" alt=\"filtre a tiroir a l&#x27;arriere du sony 100-400 f4.5 gm\" class=\"wp-image-10223\" srcset=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/sony-100-400-f4-5-gm-filtre-a-tiroir.jpg?w=800&amp;ssl=1 800w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/sony-100-400-f4-5-gm-filtre-a-tiroir.jpg?resize=300%2C169&amp;ssl=1 300w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/sony-100-400-f4-5-gm-filtre-a-tiroir.jpg?resize=768%2C432&amp;ssl=1 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p>Juste en dessous, il y a un petit compartiment pour <strong>des filtres \u00e0 tiroir<\/strong>, que tu glisses \u00e0 l&rsquo;arri\u00e8re de l&rsquo;objectif, comme sur les tr\u00e8s gros t\u00e9l\u00e9objectifs. C&rsquo;est tr\u00e8s important, parce qu&rsquo;\u00e0 l&rsquo;avant, <strong>le diam\u00e8tre de filtre est de 95 mm<\/strong>. \u00c7a reste tr\u00e8s gros, et tr\u00e8s cher. Si tu peux mettre tes filtres \u00e0 l&rsquo;arri\u00e8re, c&rsquo;est beaucoup mieux. Pour savoir quels filtres valent le coup, lis <a href=\"https:\/\/pierretlambert.com\/fr\/filtres-photos-guide-essentiel\/\" target=\"_blank\" rel=\"noreferrer noopener\">mon guide des filtres photo<\/a>.<\/p>\n\n\n\n<p>Enfin, l&rsquo;objectif est <strong>compatible avec les t\u00e9l\u00e9convertisseurs 1,4x et 2x<\/strong>. Avec le 2x, tu te retrouves litt\u00e9ralement avec un <strong>200-800 mm<\/strong>. En contrepartie, tu passes \u00e0 f\/9, parce que tu doubles aussi ton ouverture. Mais pour l&rsquo;animalier, c&rsquo;est une sacr\u00e9e port\u00e9e.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Autofocus sur le terrain : plus rapide que moi<\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"450\" src=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/sony-100-400-f4-5-gm-autofocus-detection-de-sujet.jpg?resize=800%2C450&#038;ssl=1\" alt=\"detection de sujet autofocus sony 100-400 f4.5 gm et a7r vi\" class=\"wp-image-10225\" srcset=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/sony-100-400-f4-5-gm-autofocus-detection-de-sujet.jpg?w=800&amp;ssl=1 800w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/sony-100-400-f4-5-gm-autofocus-detection-de-sujet.jpg?resize=300%2C169&amp;ssl=1 300w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/sony-100-400-f4-5-gm-autofocus-detection-de-sujet.jpg?resize=768%2C432&amp;ssl=1 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p>Sur le terrain, c&rsquo;\u00e9tait fou. Je tiens \u00e0 le dire : <strong>la vitesse de l&rsquo;autofocus est bluffante.<\/strong><\/p>\n\n\n\n<p>Pourquoi bluffante ? J&rsquo;\u00e9tais en d\u00e9tection de sujet, activ\u00e9e avec le petit bouton sur l&rsquo;objectif. Et avec mon combo <strong>100-400 f\/4.5 et A7R VI<\/strong>, la d\u00e9tection de sujet se faisait litt\u00e9ralement avant mes yeux. J&rsquo;avais des sc\u00e8nes avec des gens dans des voitures, de loin, et l&rsquo;appareil avait d\u00e9j\u00e0 trouv\u00e9 le sujet et fait la mise au point avant m\u00eame que je me dise : \u00ab Ah oui, il est bien l\u00e0. \u00bb On parle de quelques milli\u00e8mes de seconde. Mais <strong>c&rsquo;\u00e9tait la premi\u00e8re fois que j&rsquo;avais l&rsquo;impression que l&rsquo;appareil \u00e9tait plus rapide que moi.<\/strong><\/p>\n\n\n\n<p>\u00c0 l&rsquo;int\u00e9rieur, il y a <strong>quatre moteurs lin\u00e9aires<\/strong> pour une mise au point aussi rapide. Et dans la rue, c&rsquo;\u00e9tait un vrai test : des sujets qui partent dans tous les sens, des voitures qui passent devant. Il faut que l&rsquo;objectif soit rapide, que l&rsquo;appareil soit rapide, et que \u00e7a accroche bien. <em>(Et j&rsquo;avoue, je rendais volontairement les choses plus difficiles qu&rsquo;elles n&rsquo;avaient besoin de l&rsquo;\u00eatre.)<\/em><\/p>\n\n\n\n<p>Et pour avoir des r\u00e9glages fiables quand \u00e7a bouge, <strong>r\u00e9cup\u00e8re ma fiche de r\u00e9glages gratuite<\/strong> :<\/p>\n\n\n\n<iframe\n  src=\"https:\/\/link.coursecreator360.com\/widget\/form\/k7wQE18x7k6Z7T8DnoJF\"\n  style=\"width:100%;height:100%;border:none;border-radius:3px\"\n  id=\"inline-k7wQE18x7k6Z7T8DnoJF\" \n  data-layout=\"{'id':'INLINE'}\"\n  data-trigger-type=\"alwaysShow\"\n  data-trigger-value=\"\"\n  data-activation-type=\"alwaysActivated\"\n  data-activation-value=\"\"\n  data-deactivation-type=\"neverDeactivate\"\n  data-deactivation-value=\"\"\n  data-form-name=\"FR - Blog In Line - Fiche R\u00e9glages\"\n  data-height=\"480\"\n  data-layout-iframe-id=\"inline-k7wQE18x7k6Z7T8DnoJF\"\n  data-form-id=\"k7wQE18x7k6Z7T8DnoJF\"\n  title=\"FR - Blog In Line - Fiche R\u00e9glages\"\n      >\n<\/iframe>\n<script src=\"https:\/\/link.coursecreator360.com\/js\/form_embed.js\"><\/script>\n\n\n\n<h2 class=\"wp-block-heading\">Exemples de photos prises au Sony 100-400 f\/4.5 GM \u00e0 Tokyo<\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"1201\" src=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/photo-de-rue-tokyo-sony-100-400-f4-5-gm-100mm-contre-jour.jpg?resize=800%2C1201&#038;ssl=1\" alt=\"photo de rue a tokyo a contre-jour au sony 100-400 f4.5 gm a 100mm\" class=\"wp-image-10472\" srcset=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/photo-de-rue-tokyo-sony-100-400-f4-5-gm-100mm-contre-jour.jpg?w=1066&amp;ssl=1 1066w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/photo-de-rue-tokyo-sony-100-400-f4-5-gm-100mm-contre-jour.jpg?resize=200%2C300&amp;ssl=1 200w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/photo-de-rue-tokyo-sony-100-400-f4-5-gm-100mm-contre-jour.jpg?resize=682%2C1024&amp;ssl=1 682w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/photo-de-rue-tokyo-sony-100-400-f4-5-gm-100mm-contre-jour.jpg?resize=768%2C1153&amp;ssl=1 768w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/photo-de-rue-tokyo-sony-100-400-f4-5-gm-100mm-contre-jour.jpg?resize=1023%2C1536&amp;ssl=1 1023w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption class=\"wp-element-caption\">Sony A7R VI et 100-400 mm f\/4.5 GM : 100 mm, f\/4.5, 1\/500 s, ISO 320. <em>Photo \u00e9dit\u00e9e avec mes presets Lightroom disponibles <a href=\"https:\/\/pierretlambert.com\/presetsfr\" target=\"_blank\" rel=\"noreferrer noopener\">ici<\/a><\/em><\/figcaption><\/figure>\n\n\n\n<p>Je n&rsquo;utilise pas beaucoup les 100-400. Mais celui-ci m&rsquo;a impressionn\u00e9, d&rsquo;abord par <strong>la qualit\u00e9 des images<\/strong> et par <strong>le piqu\u00e9<\/strong>. En photo de rue, le t\u00e9l\u00e9objectif te permet de rester loin, de ne pas d\u00e9ranger la sc\u00e8ne, et d&rsquo;aller chercher de la compression.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"533\" src=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/photo-sony-100-400-f4-5-gm-263mm-silhouette-tokyo.jpg?resize=800%2C533&#038;ssl=1\" alt=\"silhouette a contre-jour a tokyo au sony 100-400 f4.5 gm a 263mm\" class=\"wp-image-10474\" srcset=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/photo-sony-100-400-f4-5-gm-263mm-silhouette-tokyo.jpg?w=1600&amp;ssl=1 1600w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/photo-sony-100-400-f4-5-gm-263mm-silhouette-tokyo.jpg?resize=300%2C200&amp;ssl=1 300w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/photo-sony-100-400-f4-5-gm-263mm-silhouette-tokyo.jpg?resize=1024%2C682&amp;ssl=1 1024w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/photo-sony-100-400-f4-5-gm-263mm-silhouette-tokyo.jpg?resize=768%2C512&amp;ssl=1 768w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/photo-sony-100-400-f4-5-gm-263mm-silhouette-tokyo.jpg?resize=1536%2C1023&amp;ssl=1 1536w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/photo-sony-100-400-f4-5-gm-263mm-silhouette-tokyo.jpg?resize=600%2C400&amp;ssl=1 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption class=\"wp-element-caption\">263 mm, f\/4.5, 1\/500 s, ISO 500<\/figcaption><\/figure>\n\n\n\n<p>\u00c0 263 mm et f\/4.5, le sujet se d\u00e9tache compl\u00e8tement du fond, m\u00eame en pleine rue. Et au coucher du soleil, \u00e0 300 mm, la compression \u00e9crase les plans : les taxis, les feux et l&rsquo;autoroute sur\u00e9lev\u00e9e se retrouvent empil\u00e9s dans la lumi\u00e8re.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"1201\" src=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/photo-sony-100-400-f4-5-gm-300mm-coucher-de-soleil-tokyo.jpg?resize=800%2C1201&#038;ssl=1\" alt=\"coucher de soleil sur une rue de tokyo au sony 100-400 f4.5 gm a 300mm\" class=\"wp-image-10476\" srcset=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/photo-sony-100-400-f4-5-gm-300mm-coucher-de-soleil-tokyo.jpg?w=1066&amp;ssl=1 1066w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/photo-sony-100-400-f4-5-gm-300mm-coucher-de-soleil-tokyo.jpg?resize=200%2C300&amp;ssl=1 200w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/photo-sony-100-400-f4-5-gm-300mm-coucher-de-soleil-tokyo.jpg?resize=682%2C1024&amp;ssl=1 682w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/photo-sony-100-400-f4-5-gm-300mm-coucher-de-soleil-tokyo.jpg?resize=768%2C1153&amp;ssl=1 768w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/photo-sony-100-400-f4-5-gm-300mm-coucher-de-soleil-tokyo.jpg?resize=1023%2C1536&amp;ssl=1 1023w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption class=\"wp-element-caption\">300 mm, f\/4.5, 1\/500 s, ISO 800<\/figcaption><\/figure>\n\n\n\n<p>Le t\u00e9l\u00e9objectif sert aussi \u00e0 isoler un d\u00e9tail d&rsquo;architecture, ou \u00e0 aller chercher la lune entre deux immeubles, \u00e0 400 mm.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"533\" src=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/photo-sony-100-400-f4-5-gm-246mm-architecture-tokyo.jpg?resize=800%2C533&#038;ssl=1\" alt=\"detail architecture a tokyo au sony 100-400 f4.5 gm a 246mm\" class=\"wp-image-10478\" srcset=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/photo-sony-100-400-f4-5-gm-246mm-architecture-tokyo.jpg?w=1600&amp;ssl=1 1600w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/photo-sony-100-400-f4-5-gm-246mm-architecture-tokyo.jpg?resize=300%2C200&amp;ssl=1 300w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/photo-sony-100-400-f4-5-gm-246mm-architecture-tokyo.jpg?resize=1024%2C682&amp;ssl=1 1024w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/photo-sony-100-400-f4-5-gm-246mm-architecture-tokyo.jpg?resize=768%2C512&amp;ssl=1 768w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/photo-sony-100-400-f4-5-gm-246mm-architecture-tokyo.jpg?resize=1536%2C1023&amp;ssl=1 1536w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/photo-sony-100-400-f4-5-gm-246mm-architecture-tokyo.jpg?resize=600%2C400&amp;ssl=1 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption class=\"wp-element-caption\">246 mm, f\/4.5, 1\/1000 s, ISO 200<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"1201\" src=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/photo-sony-100-400-f4-5-gm-400mm-lune-tokyo.jpg?resize=800%2C1201&#038;ssl=1\" alt=\"la lune entre deux immeubles a tokyo au sony 100-400 f4.5 gm a 400mm\" class=\"wp-image-10480\" srcset=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/photo-sony-100-400-f4-5-gm-400mm-lune-tokyo.jpg?w=1066&amp;ssl=1 1066w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/photo-sony-100-400-f4-5-gm-400mm-lune-tokyo.jpg?resize=200%2C300&amp;ssl=1 200w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/photo-sony-100-400-f4-5-gm-400mm-lune-tokyo.jpg?resize=682%2C1024&amp;ssl=1 682w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/photo-sony-100-400-f4-5-gm-400mm-lune-tokyo.jpg?resize=768%2C1153&amp;ssl=1 768w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/photo-sony-100-400-f4-5-gm-400mm-lune-tokyo.jpg?resize=1023%2C1536&amp;ssl=1 1023w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption class=\"wp-element-caption\">400 mm, f\/4.5, 1\/500 s, ISO 250<\/figcaption><\/figure>\n\n\n\n<p>M\u00eame de nuit, f\/4.5 constant aide beaucoup. La Tokyo Tower, \u00e0 160 mm, \u00e0 1\/250 s et ISO 1250 seulement.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"1201\" src=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/photo-sony-100-400-f4-5-gm-160mm-tokyo-tower-nuit.jpg?resize=800%2C1201&#038;ssl=1\" alt=\"tokyo tower de nuit au sony 100-400 f4.5 gm a 160mm\" class=\"wp-image-10482\" srcset=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/photo-sony-100-400-f4-5-gm-160mm-tokyo-tower-nuit.jpg?w=1066&amp;ssl=1 1066w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/photo-sony-100-400-f4-5-gm-160mm-tokyo-tower-nuit.jpg?resize=200%2C300&amp;ssl=1 200w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/photo-sony-100-400-f4-5-gm-160mm-tokyo-tower-nuit.jpg?resize=682%2C1024&amp;ssl=1 682w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/photo-sony-100-400-f4-5-gm-160mm-tokyo-tower-nuit.jpg?resize=768%2C1153&amp;ssl=1 768w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/photo-sony-100-400-f4-5-gm-160mm-tokyo-tower-nuit.jpg?resize=1023%2C1536&amp;ssl=1 1023w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption class=\"wp-element-caption\">160 mm, f\/4.5, 1\/250 s, ISO 1250. <em>Photo \u00e9dit\u00e9e avec mes presets Lightroom disponibles <a href=\"https:\/\/pierretlambert.com\/presetsfr\" target=\"_blank\" rel=\"noreferrer noopener\">ici<\/a><\/em><\/figcaption><\/figure>\n\n\n\n<p>Et trois autres photos de cette m\u00eame sortie \u00e0 Tokyo, toujours au 100-400 :<\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-3 is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"1201\" data-id=\"10553\" src=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/photo-sony-100-400-f4-5-gm-200mm-cafe-tokyo.jpg?resize=800%2C1201&#038;ssl=1\" alt=\"photo de rue tokyo cafe sony 100-400 f4.5 gm 200mm\" class=\"wp-image-10553\" srcset=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/photo-sony-100-400-f4-5-gm-200mm-cafe-tokyo.jpg?w=1066&amp;ssl=1 1066w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/photo-sony-100-400-f4-5-gm-200mm-cafe-tokyo.jpg?resize=200%2C300&amp;ssl=1 200w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/photo-sony-100-400-f4-5-gm-200mm-cafe-tokyo.jpg?resize=682%2C1024&amp;ssl=1 682w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/photo-sony-100-400-f4-5-gm-200mm-cafe-tokyo.jpg?resize=768%2C1153&amp;ssl=1 768w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/photo-sony-100-400-f4-5-gm-200mm-cafe-tokyo.jpg?resize=1023%2C1536&amp;ssl=1 1023w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption class=\"wp-element-caption\">200 mm, f\/5, 1\/1000 s, ISO 250<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"1201\" data-id=\"10555\" src=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/photo-sony-100-400-f4-5-gm-100mm-passage-pieton-tokyo.jpg?resize=800%2C1201&#038;ssl=1\" alt=\"photo de rue tokyo passage pieton sony 100-400 f4.5 gm 100mm\" class=\"wp-image-10555\" srcset=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/photo-sony-100-400-f4-5-gm-100mm-passage-pieton-tokyo.jpg?w=1066&amp;ssl=1 1066w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/photo-sony-100-400-f4-5-gm-100mm-passage-pieton-tokyo.jpg?resize=200%2C300&amp;ssl=1 200w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/photo-sony-100-400-f4-5-gm-100mm-passage-pieton-tokyo.jpg?resize=682%2C1024&amp;ssl=1 682w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/photo-sony-100-400-f4-5-gm-100mm-passage-pieton-tokyo.jpg?resize=768%2C1153&amp;ssl=1 768w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/photo-sony-100-400-f4-5-gm-100mm-passage-pieton-tokyo.jpg?resize=1023%2C1536&amp;ssl=1 1023w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption class=\"wp-element-caption\">100 mm, f\/4.5, 1\/1000 s, ISO 160<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"1201\" data-id=\"10557\" src=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/photo-sony-100-400-f4-5-gm-100mm-bleu-tokyo.jpg?resize=800%2C1201&#038;ssl=1\" alt=\"photo de rue tokyo facade bleue sony 100-400 f4.5 gm 100mm\" class=\"wp-image-10557\" srcset=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/photo-sony-100-400-f4-5-gm-100mm-bleu-tokyo.jpg?w=1066&amp;ssl=1 1066w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/photo-sony-100-400-f4-5-gm-100mm-bleu-tokyo.jpg?resize=200%2C300&amp;ssl=1 200w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/photo-sony-100-400-f4-5-gm-100mm-bleu-tokyo.jpg?resize=682%2C1024&amp;ssl=1 682w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/photo-sony-100-400-f4-5-gm-100mm-bleu-tokyo.jpg?resize=768%2C1153&amp;ssl=1 768w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/photo-sony-100-400-f4-5-gm-100mm-bleu-tokyo.jpg?resize=1023%2C1536&amp;ssl=1 1023w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption class=\"wp-element-caption\">100 mm, f\/5, 1\/1000 s, ISO 200<\/figcaption><\/figure>\n<\/figure>\n\n\n<h2 class=\"wp-block-heading\">Prix du Sony 100-400 f\/4.5 GM : cher, mais moins qu&rsquo;une focale fixe<\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"450\" src=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/prix-sony-100-400-f4-5-gm-ipln.jpg?resize=800%2C450&#038;ssl=1\" alt=\"prix du sony 100-400 f4.5 gm chez ipln\" class=\"wp-image-10235\" srcset=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/prix-sony-100-400-f4-5-gm-ipln.jpg?w=800&amp;ssl=1 800w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/prix-sony-100-400-f4-5-gm-ipln.jpg?resize=300%2C169&amp;ssl=1 300w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/prix-sony-100-400-f4-5-gm-ipln.jpg?resize=768%2C432&amp;ssl=1 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p>Reste le prix : \u00e0 sa sortie, le <strong><a href=\"https:\/\/geni.us\/sony100400fr\" target=\"_blank\" rel=\"noreferrer noopener\">Sony 100-400 mm f\/4.5 GM<\/a><\/strong> est affich\u00e9 \u00e0 <strong>4 999 \u20ac<\/strong>. Oui, c&rsquo;est beaucoup.<\/p>\n\n\n\n<p>Mais remets-le dans son contexte. C&rsquo;est un objectif de sport et d&rsquo;animalier qui va vraiment faire plaisir, \u00e0 un tarif inf\u00e9rieur \u00e0 celui d&rsquo;un 400 mm ou d&rsquo;un 600 mm fixe, ou d&rsquo;un 300 mm f\/2.8. <strong>Sony a fait tr\u00e8s fort sur ce coup-l\u00e0.<\/strong><\/p>\n\n\n\n<p>Je pr\u00e9cise : <strong>je ne suis pas sponsoris\u00e9 par Sony.<\/strong> Ils ne me payent pas pour l&rsquo;essayer, ni pour en parler. Tu peux aussi le trouver chez <strong><a href=\"https:\/\/ipln.fr\/?s=PIERRE\" target=\"_blank\" rel=\"noreferrer noopener\">IPLN<\/a><\/strong>, une boutique fran\u00e7aise familiale que j&rsquo;aime beaucoup. Cr\u00e9e ton compte avec mon code cr\u00e9ateur <strong>PIERRE<\/strong> : \u00e7a ne te co\u00fbte rien de plus et \u00e7a m&rsquo;aide \u00e0 continuer \u00e0 tester du matos et \u00e0 faire ces articles.<\/p>\n\n\n\n<p>Et si tu fais de l&rsquo;animalier ou du sport, dis-moi en commentaire ce que tu en penses : est-ce que tu vas craquer ?<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Le seul d\u00e9faut : le poids<\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"450\" src=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/sony-100-400-f4-5-gm-poids-1-8-kg-collier-trepied.jpg?resize=800%2C450&#038;ssl=1\" alt=\"poids du sony 100-400 f4.5 gm et collier de trepied\" class=\"wp-image-10484\" srcset=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/sony-100-400-f4-5-gm-poids-1-8-kg-collier-trepied.jpg?w=1280&amp;ssl=1 1280w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/sony-100-400-f4-5-gm-poids-1-8-kg-collier-trepied.jpg?resize=300%2C169&amp;ssl=1 300w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/sony-100-400-f4-5-gm-poids-1-8-kg-collier-trepied.jpg?resize=1024%2C576&amp;ssl=1 1024w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/sony-100-400-f4-5-gm-poids-1-8-kg-collier-trepied.jpg?resize=768%2C432&amp;ssl=1 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p>Le seul d\u00e9savantage que j&rsquo;ai trouv\u00e9, c&rsquo;est qu&rsquo;il est un peu lourd : <strong>400 g de plus que l&rsquo;ancien, pour environ 1,8 kg<\/strong> (de m\u00e9moire). Mais avec une ouverture constante, physiquement, tu ne peux pas avoir un objectif ultra l\u00e9ger. Il y a des choses \u00e0 \u00e9quilibrer.<\/p>\n\n\n\n<p>Et 1,8 kg, ce n&rsquo;est pas non plus la mer \u00e0 boire pour un objectif comme \u00e7a. Tu peux le mettre sur ton tr\u00e9pied sans aucun souci. D&rsquo;ailleurs, ils ont un peu am\u00e9lior\u00e9 l&rsquo;ergonomie du <strong>collier de tr\u00e9pied<\/strong> : quand tu le fais tourner, tu as maintenant des petits crans. Avant, il pouvait s&rsquo;arr\u00eater n&rsquo;importe o\u00f9.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Mon avis : pour qui est le Sony 100-400 f\/4.5 GM ?<\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"450\" src=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/avis-sony-100-400-f4-5-gm-verdict.jpg?resize=800%2C450&#038;ssl=1\" alt=\"avis sur le sony 100-400 f4.5 gm par pierre t lambert\" class=\"wp-image-10239\" srcset=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/avis-sony-100-400-f4-5-gm-verdict.jpg?w=800&amp;ssl=1 800w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/avis-sony-100-400-f4-5-gm-verdict.jpg?resize=300%2C169&amp;ssl=1 300w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2026\/11\/avis-sony-100-400-f4-5-gm-verdict.jpg?resize=768%2C432&amp;ssl=1 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p>C&rsquo;est un objectif qui m&rsquo;a bluff\u00e9 : la qualit\u00e9 des images, la vitesse de l&rsquo;autofocus, le piqu\u00e9, et surtout <strong>une utilisation qui a \u00e9t\u00e9 un vrai plaisir<\/strong>.<\/p>\n\n\n\n<p><strong>Il est fait pour toi si<\/strong> tu fais du sport ou de l&rsquo;animalier, que tu veux f\/4.5 sur toute la plage et le meilleur autofocus de Sony, sans payer le prix d&rsquo;une grosse focale fixe. Avec les t\u00e9l\u00e9convertisseurs, il peut m\u00eame aller jusqu&rsquo;\u00e0 800 mm.<\/p>\n\n\n\n<p><strong>Passe ton chemin si<\/strong> tu cherches un objectif l\u00e9ger pour te balader toute la journ\u00e9e, ou si ton budget ne suit pas. La version \u00e0 ouverture variable reste un objectif que les gens adorent, plus l\u00e9ger et moins cher. Et pour un t\u00e9l\u00e9objectif qui te suit partout, lis <a href=\"https:\/\/pierretlambert.com\/fr\/70-200-f4-ou-f2-8-teleobjectif-sony\/\" target=\"_blank\" rel=\"noreferrer noopener\">mon comparatif 70-200 f\/4 ou f\/2.8<\/a>.<\/p>\n\n\n\n<p>Et avant d&rsquo;acheter du matos, <strong>assure-toi d&rsquo;avoir investi dans tes comp\u00e9tences au moins une fois cette ann\u00e9e<\/strong> : un voyage photo, un workshop ou une formation en ligne. Un objectif \u00e0 5 000 \u20ac ne fera pas les photos \u00e0 ta place.<\/p>\n\n\n\n<p>Si tu veux une m\u00e9thode pas \u00e0 pas pour voir, photographier et retoucher des photos dont tu es fier, d\u00e9couvre <a href=\"https:\/\/pierretlambert.com\/formation\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>30 Jours Pour Des Photos Pro<\/strong>, ma formation<\/a>. Pour ma\u00eetriser ton bo\u00eetier Sony, ses menus et son autofocus, c&rsquo;est <a href=\"https:\/\/pierretlambert.com\/sonymaster\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>la Sony Alpha Masterclass<\/strong><\/a>. Et pour un peu d&rsquo;aide sur le terrain, <strong>r\u00e9cup\u00e8re <a href=\"https:\/\/pierretlambert.com\/gratuit\" target=\"_blank\" rel=\"noreferrer noopener\">ma fiche de r\u00e9glages gratuite<\/a><\/strong>.<\/p>\n\n\n\n<p><strong>Si tu h\u00e9sites avec un autre objectif G Master, lis <a href=\"https:\/\/pierretlambert.com\/fr\/test-sony-28-70mm-f2-gm-avis-photos\/\" target=\"_blank\" rel=\"noreferrer noopener\">mon test du Sony 28-70 mm f\/2 GM<\/a>.<\/strong> Pour composer ton kit selon ton budget, lis <a href=\"https:\/\/pierretlambert.com\/fr\/quel-objectif-sony-choisir\/\" target=\"_blank\" rel=\"noreferrer noopener\">quel objectif Sony choisir<\/a>. Pour comprendre pourquoi tes photos ne sont pas bien nettes, regarde <a href=\"https:\/\/youtu.be\/4L5BEaePRIY\" target=\"_blank\" rel=\"noreferrer noopener\">cette vid\u00e9o<\/a>. Et mon retour terrain sur le A7R VI, le bo\u00eetier de ce test, est dans <a href=\"https:\/\/pierretlambert.com\/fr\/test-sony-a7r-vi-avis\/\" target=\"_blank\" rel=\"noreferrer noopener\">mon test du Sony A7R VI<\/a>. Si tu h\u00e9sites entre les deux bo\u00eetiers, lis aussi <a href=\"https:\/\/pierretlambert.com\/fr\/sony-a7r-vi-vs-a7v\/\" target=\"_blank\" rel=\"noreferrer noopener\">mon comparatif A7R VI vs A7 V<\/a>.<\/p>\n\n\n\n<p><strong>Sors, va prendre des photos, essaie quelque chose de nouveau.<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Test du Sony 100-400 mm f\/4.5 GM : mon avis apr\u00e8s l&rsquo;avoir pouss\u00e9 dans les rues de Tokyo avec le A7R VI. Ergonomie, bague programmable, filtres \u00e0 tiroir, t\u00e9l\u00e9convertisseurs, un autofocus bluffant, des exemples de photos, son vrai d\u00e9faut, son prix, et pour qui ce t\u00e9l\u00e9objectif \u00e0 ouverture constante vaut vraiment le coup.<\/p>\n","protected":false},"author":1,"featured_media":10459,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[172],"tags":[],"class_list":["post-10243","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-photographie"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Test Sony 100-400 mm f\/4.5 GM : Mon Avis Terrain \u00e0 Tokyo (Un Autofocus Plus Rapide Que Moi) - Pierre T. 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