{"id":1989,"date":"2015-10-18T11:48:49","date_gmt":"2015-10-18T03:48:49","guid":{"rendered":"http:\/\/www.whitetrefoil.com\/blog\/?p=1989"},"modified":"2015-10-18T12:06:40","modified_gmt":"2015-10-18T04:06:40","slug":"simple-ab-comparison-between-a7s-and-a7rii-about-adapting-rf-lenses","status":"publish","type":"post","link":"https:\/\/www.whitetrefoil.com\/blog\/?p=1989","title":{"rendered":"Simple A\/B Comparison between a7S and a7RII about Adapting RF Lenses"},"content":{"rendered":"<p>Just did a very simple A\/B comparison.  The result seemed to support the myth about a7RII has less &#8220;field curvature&#8221; problem than previous a7 series, which should make no sense unless SONY did thin the glass in front of the senser.<\/p>\n<p>It&#8217;s just a single quick test so it can be inaccurate.  If have time I&#8217;ll repeat it in different scenes.<\/p>\n<p>The lens in this test is a Zeiss C Biogon T* 4.5\/21 ZM.  Distance is 1m.<\/p>\n<figure id=\"attachment_1990\" aria-describedby=\"caption-attachment-1990\" style=\"width: 900px\" class=\"wp-caption alignnone\"><a href=\"http:\/\/www.whitetrefoil.com\/blog\/wp-content\/uploads\/2015\/10\/Left_a7S.jpg\"><img decoding=\"async\" loading=\"lazy\" src=\"http:\/\/www.whitetrefoil.com\/blog\/wp-content\/uploads\/2015\/10\/Left_a7S.jpg\" alt=\"a7S Upper Left Corner\" width=\"900\" height=\"601\" class=\"size-full wp-image-1990\" srcset=\"https:\/\/www.whitetrefoil.com\/blog\/wp-content\/uploads\/2015\/10\/Left_a7S.jpg 900w, https:\/\/www.whitetrefoil.com\/blog\/wp-content\/uploads\/2015\/10\/Left_a7S-300x200.jpg 300w\" sizes=\"(max-width: 900px) 100vw, 900px\" \/><\/a><figcaption id=\"caption-attachment-1990\" class=\"wp-caption-text\">a7S Upper Left Corner<\/figcaption><\/figure>\n<figure id=\"attachment_1991\" aria-describedby=\"caption-attachment-1991\" style=\"width: 900px\" class=\"wp-caption alignnone\"><a href=\"http:\/\/www.whitetrefoil.com\/blog\/wp-content\/uploads\/2015\/10\/Left_a7R2.jpg\"><img decoding=\"async\" loading=\"lazy\" src=\"http:\/\/www.whitetrefoil.com\/blog\/wp-content\/uploads\/2015\/10\/Left_a7R2.jpg\" alt=\"a7R2 Upper Left Corner\" width=\"900\" height=\"601\" class=\"size-full wp-image-1991\" srcset=\"https:\/\/www.whitetrefoil.com\/blog\/wp-content\/uploads\/2015\/10\/Left_a7R2.jpg 900w, https:\/\/www.whitetrefoil.com\/blog\/wp-content\/uploads\/2015\/10\/Left_a7R2-300x200.jpg 300w\" sizes=\"(max-width: 900px) 100vw, 900px\" \/><\/a><figcaption id=\"caption-attachment-1991\" class=\"wp-caption-text\">a7R2 Upper Left Corner<\/figcaption><\/figure>\n<figure id=\"attachment_1992\" aria-describedby=\"caption-attachment-1992\" style=\"width: 900px\" class=\"wp-caption alignnone\"><a href=\"http:\/\/www.whitetrefoil.com\/blog\/wp-content\/uploads\/2015\/10\/Right_a7S.jpg\"><img decoding=\"async\" loading=\"lazy\" src=\"http:\/\/www.whitetrefoil.com\/blog\/wp-content\/uploads\/2015\/10\/Right_a7S.jpg\" alt=\"a7S Upper Right Corner\" width=\"900\" height=\"601\" class=\"size-full wp-image-1992\" srcset=\"https:\/\/www.whitetrefoil.com\/blog\/wp-content\/uploads\/2015\/10\/Right_a7S.jpg 900w, https:\/\/www.whitetrefoil.com\/blog\/wp-content\/uploads\/2015\/10\/Right_a7S-300x200.jpg 300w\" sizes=\"(max-width: 900px) 100vw, 900px\" \/><\/a><figcaption id=\"caption-attachment-1992\" class=\"wp-caption-text\">a7S Upper Right Corner<\/figcaption><\/figure>\n<figure id=\"attachment_1993\" aria-describedby=\"caption-attachment-1993\" style=\"width: 900px\" class=\"wp-caption alignnone\"><a href=\"http:\/\/www.whitetrefoil.com\/blog\/wp-content\/uploads\/2015\/10\/Right_a7R2.jpg\"><img decoding=\"async\" loading=\"lazy\" src=\"http:\/\/www.whitetrefoil.com\/blog\/wp-content\/uploads\/2015\/10\/Right_a7R2.jpg\" alt=\"a7R2 Upper Right Corner\" width=\"900\" height=\"601\" class=\"size-full wp-image-1993\" srcset=\"https:\/\/www.whitetrefoil.com\/blog\/wp-content\/uploads\/2015\/10\/Right_a7R2.jpg 900w, https:\/\/www.whitetrefoil.com\/blog\/wp-content\/uploads\/2015\/10\/Right_a7R2-300x200.jpg 300w\" sizes=\"(max-width: 900px) 100vw, 900px\" \/><\/a><figcaption id=\"caption-attachment-1993\" class=\"wp-caption-text\">a7R2 Upper Right Corner<\/figcaption><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Just did a very simple A\/B comparison. The result seeme &hellip; <\/p>\n","protected":false},"author":1,"featured_media":1990,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[16],"tags":[215,185,217,219,60,218],"_links":{"self":[{"href":"https:\/\/www.whitetrefoil.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/1989"}],"collection":[{"href":"https:\/\/www.whitetrefoil.com\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.whitetrefoil.com\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.whitetrefoil.com\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.whitetrefoil.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1989"}],"version-history":[{"count":7,"href":"https:\/\/www.whitetrefoil.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/1989\/revisions"}],"predecessor-version":[{"id":2002,"href":"https:\/\/www.whitetrefoil.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/1989\/revisions\/2002"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.whitetrefoil.com\/blog\/index.php?rest_route=\/wp\/v2\/media\/1990"}],"wp:attachment":[{"href":"https:\/\/www.whitetrefoil.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1989"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.whitetrefoil.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1989"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.whitetrefoil.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1989"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}