{"id":3990,"date":"2024-03-21T13:41:33","date_gmt":"2024-03-21T12:41:33","guid":{"rendered":"https:\/\/maxima-studios.com\/produit\/speedbooster-ef-e\/"},"modified":"2026-04-13T20:07:12","modified_gmt":"2026-04-13T18:07:12","slug":"speedbooster-ef-e","status":"publish","type":"product","link":"https:\/\/maxima-studios.com\/en\/product\/speedbooster-ef-e\/","title":{"rendered":"SPEEDBOOSTER EF-E"},"content":{"rendered":"<p>La bague d&#8217;adaptation Speedbooster Ultra EF-E permet d&#8217;adapter des objectifs Canon EF plein format sur des cam\u00e9ras Sony E-Mount APS-C et Super35. Le ratio de conversion de cette bague compense quasiment le crop factor du capteur APS-C\/S35 (0.71&#215;1,5 \u2248 1,1 et 0,71&#215;1,6 \u2248 1,1). Vous conservez donc la longueur de votre focale full frame sur votre cam\u00e9ra APS-C\/S35, ce qui est particuli\u00e8rement utile pour les plans larges.<\/p>\n<p>\u00a0<\/p>\n<p>Autre avantage, le gain d\u2019un diaph gr\u00e2ce au jeu de lentilles pr\u00e9sent dans la bague. Si par exemple l\u2019objectif utilis\u00e9 ouvre \u00e0 2.8, son ouverture relative sera de 2 : le capteur recevra autant de lumi\u00e8re que si une optique APS-C ouvrant \u00e0 F2 avait \u00e9t\u00e9 mont\u00e9e sur le bo\u00eetier.<\/p>\n<p>\u00a0<\/p>\n<p>Id\u00e9ale pour des cam\u00e9ras Super 35 comme la Sony FS5 ou la Sony FS7. Un zoom 24-105 F4 OSS deviendra un 26-115 F2.8 (24-104&#215;1,1) l\u00e0 o\u00f9 une bague classique\u00a0aurait donn\u00e9 un 36-158 F4 (24-105 x 1.5).<\/p>\n<p>\u00a0<\/p>\n<p><strong>Points Forts :\u00a0<\/strong><\/p>\n<ul>\n<li>R\u00e9duction\u00a0Crop Factor de x0.71 fois<\/li>\n<li>Gain d\u2019un diaph<\/li>\n<li>Connectique AF + Diaph + Stab<br \/>\u00a0<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Bague EF &#8211; E<\/p>\n<p>Couverture : Sony APS-C et Super 35<\/p>\n<p>Reduction crop : 0,7x<\/p>\n<p>Gain Diaph : +1<\/p>\n<p>Controle: Diaph + Stab<\/p>","protected":false},"featured_media":9181,"template":"","meta":[],"product_cat":[235],"product_tag":[],"class_list":{"0":"post-3990","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-bague-dadaptation","8":"first","9":"instock","10":"taxable","11":"shipping-taxable","12":"purchasable","13":"product-type-rentable"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - 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