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Speed Booster : EF to Sigma SA mount

 
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ManWearPants



Joined: 18 Feb 2010
Posts: 73

PostPosted: Mon Oct 28, 2013 6:10 am    Post subject: Speed Booster : EF to Sigma SA mount Reply with quote

Since you are into both EF and SA mounts conversion. I am wondering whether you can make EF lens to SA camera mount speed booster available.

To boldly goes where no one else has gone. You can contact Sigma and work with them for such an adapter. This will rescue Sigma DSLR and foveon sensors into a dying mammoth.

Or can you make a few for die hard Contax N users who are into both Canon and Sigma systems? It does not make sense to convert 2 lenses of the same into 2 different mounts each. Furthermore, the speed booster is what SD15/SD1 would need. It can be a manual focus adapter.
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conurus
Site Admin


Joined: 15 Aug 2006
Posts: 795
Location: Vancouver, Canada

PostPosted: Mon Oct 28, 2013 9:24 pm    Post subject: Reply with quote

Speed Booster decreases flange distance - it would go from 44.00mm to under 40mm. That's the reason why it works only with DSLR lenses and mirrorless bodies.
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I am a bird and I uncovered the E, EF and N-mount communication protocols!
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