Sigma MC-11 : Canon EF to Sony A7R II compatibility report.

Started 2 months ago | Discussions thread
Philnw2 Veteran Member • Posts: 3,208
Re: Sigma MC-11 : Canon EF to Sony A7R II compatibility report.

lacix wrote:

Canon focusing pattern is different from Sony. Some of this map info. is in the lens firmware too, I guess. - Superimposing the two patterns would show the actual usable area where both cameras focusing spots are coincident.

There's probably some problem like that which prevents the mc-11 from working all the way to the edges of the A7rii PD frame.  On the EF 85 and EF 100, i can focus to the edge of the frame, but on EF 135 and EF 200, the MC-11 does not focus except in the center and midway between center and edge.  I also have a Sigma 15mm fisheye with EF mount, it would only AF in the center of the fisheye, no midway or edge points.

To me, thats not a problem or concern, just saying....

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Phil B

 Philnw2's gear list:Philnw2's gear list
Sony a7R II Canon EF 85mm f/1.8 USM Sony FE 55mm F1.8 Canon EF 100mm f/2.0 USM Canon EF 135mm F2L USM +3 more
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