enny Posted October 6 Share Posted October 6 So I have MfT black magic 2.5k and sigma 18-35 on the way with speedboster made for BMC now I just found out I can't control aperture on my sigma with dumb adapter. Since BM don't have those control contact point how is aperture controlled by camera? Quote Link to comment Share on other sites More sharing options...
enny Posted October 6 Author Share Posted October 6 As you can see speedboster made for this camera has contacts in the back of it Quote Link to comment Share on other sites More sharing options...
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