As mentioned in earlier posts I rented the Sigma 150-600mm f\/5-6.3 DG OS HSM Sports Lens for Canon EF and the Sigma 180mm f\/2.8 EX DG OS HSM APO Macro for Canon EF to use on my Sony A7 III with the Sigma MC-11 adapter.\u00a0 I had heard on a \u201cThe Camera Store\u201d video that the MC-11 paired with Sigma Canon mount lenses \u00a0was practically equivalent to native e-mount lenses with respect to autofocus on A7 cameras. \u00a0The only caveat was that the Sigma lenses for which this was true were restricted to three series, the Art Series, the Sports Series and the Contemporary Series.\u00a0 Unfortunately for me I was interested in the Sigma 180mm f\\2.8 macro lens which is not in any of these series.\u00a0 So I rent ed this lens and the 150-600mm sports Series lens to compare how they performed with the MC-11.\u00a0 I can now confirm that the lens series that are specified by Sigma for use with the MC-11 do indeed autofocus with Sony A7 cameras utilizing all the various capabilities of the autofocus system of the Sony A7 III (at least as far as I was able to determine).\u00a0 And unfortunately, I can also confirm that lenses that aren\u2019t in those sanctioned series of lenses have much less autofocus capability than those that do.\u00a0 Many functions such as autofocus while remaining in magnified view don\u2019t work at all.\u00a0 As far as the accuracy of the autofocus it\u2019s not as clear whether the capability of the lenses differ that much because I was using it as a macro lens and that type of lens usually doesn\u2019t autofocus as quickly as normal lenses.\u00a0 My sense is that it is less capable.\u00a0 It feels like the autofocus that was available on the first generation of A7 cameras.<\/p>\n
But the main message of this post is if there are Sigma lenses that extend the lens range for the A7 cameras in one of these three lens series (Art,Sports, Contemporary) you can expect to get near native autofocus capability with the Canon mount versions on the MC-11 adapter.<\/p>\n","protected":false},"excerpt":{"rendered":"
As mentioned in earlier posts I rented the Sigma 150-600mm f\/5-6.3 DG OS HSM Sports Lens for Canon EF and the Sigma 180mm f\/2.8 EX<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"categories":[660,3,659,1],"tags":[1053,1054,1017,1055,20,32,330],"class_list":["post-3046","post","type-post","status-publish","format-standard","hentry","category-camera-reviews","category-photography","category-photography-reviews","category-uncategorized","tag-sigma-150-600mm-f-5-6-3-dg-os-hsm-a1-s-for-canon","tag-sigma-180mm-f-2-8-apo-macro-ex-dg-hsm-os-for-canon","tag-sigma-mc-11","tag-sigma-mc-11-canon-ef-to-sony-e","tag-sony","tag-sony-a7-cameras","tag-sony-a7-iii"],"yoast_head":"\n