Sigma Mount Converter MC-11 For Use With Canon SGV Lenses for Sony E

I am using this adapter for my 30 years old Canon EF mount lenses which is 50mm F1.8 and 28 to 70mm F3.5-4.5. It electronically communicates, so I can change exposure fine. The auto focus is very slow and some focal distance, it does not work. I am happy to be able to use these lenses I already have since I use manual focus most of the time. I use this on A7III and use focus magnifier, so focusing is no problem for me.

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Works great with the Sigma ART 35mm f1.4. Not blazing fast but it will use the PDAF of the II series Sony A7 cameras like my A7II. The quick firmware updating was relatively painless and supersedes the lens firmware so you dont have to worry about getting the Sigma lens dock(s). As with any adapted autofocus lens, the accuracy and speed is not perfect. I found it struggled in very low light unless I could find contrasting areas and some have said AF-C works a bit more reliably than AF-S, which is contrary to how I usually use my AF lenses. Build and finish are good, above par for your usual lens adapter. The box is your expected black and white Sigma affair like with their lenses. Overall, probably a must-have if youre adapting several Sigma lenses to the Sony bodies but makes less financial sense if youre only using one (like I am).

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Great option for allowing the outstanding Tamron 70-200 G2 Canon version adapt to a Sony e-mount system. One of my favorite lenses is the 70-200 and I picked up the 70-200+MC-11 for just over eleven hundred dollars. Mounted on my a7iii it focuses quickly and accurately including Eye-Focus. The four stars is because it does not track in video. I knew this beforehand and it works for me because I seldom use the 70-200 for video. For video it requires manual focus. Overall a great alternative to the Sony 70-200 G-Master.

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