Canon 70d with sigma 30mm Art

Started Jan 16, 2014 | Discussions thread
Woodbird New Member • Posts: 7
Re: Canon 70d with sigma 30mm Art

I have searched through the web and this is only answer that makes sense. Is there anyway to disable contrast detection all tougher? For example by fooling the camera that it is a canon lens in some way. Doesn't sigma lenses identify themselves as canon lenses to the camera (admittedly a somehow random ID)? I am no expert, but I guess all the camera need to know about the lens is that it can will drive the motor correctly according to its signals.

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