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01-14-2011, 09:04 AM   #1
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645 rear converter

Hello, My question is can you attach a k adapter for 645 lens to k20d and then attach A 645 2x rear converter then 645 lens. What happens to f/stops and A/F, M/F. Thank you, Jerry

01-14-2011, 09:16 AM   #2
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Moved to the lens forum.

The answer to your question is yes: you can definitely do that. You lose 2 stops of light, are restricted to manual focus, and have a very poorly-balanced lens that will pretty much need to have its own tripod mount.

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01-14-2011, 09:22 AM   #3
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Thank you Adam.

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