I have been wanting something like this for ages (wide angle converter that's behind the lens)

Started 4 months ago | Discussion thread
ET2
ET2
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Re: I have been wanting something like this for ages (wide angle converter that's behind the lens)
In reply to leopold, 4 months ago

leopold wrote:

Since there is glass in the adapter performance will be degraded. WA lenses are hard to correct so i can't see that adapter to deliver great results with ALL lenses !

That's now what the white paper says.

http://www.metabones.com/images/metabones/Speed%20Booster%20White%20Paper.pdf

They claim the performance will increase with the adapter. This is opposite of teleconverter. As a teleconverter slows the lens by one stop and decreases sharpness. This kind of converter (which was not possible before due to mirror box in DSLRs) makes the lens faster by *one stop* and increases sharpness.

Edited 4 months ago by ET2
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