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10-21-2008, 11:36 AM   #1
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SMC F 1.7x AF coverter

I have a chance to get a brand new in box of this at about $300.

I have a quite a few maunal lens in hand (m42, M, A), hopefully I can get the autofocus with it.

I am just wondering is it works well with those manual lens with autofocus full range? And how much image loss after use it?

Thanks.

10-21-2008, 11:23 PM   #2
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QuoteOriginally posted by qqspm Quote
I have a chance to get a brand new in box of this at about $300.

I have a quite a few maunal lens in hand (m42, M, A), hopefully I can get the autofocus with it.

I am just wondering is it works well with those manual lens with autofocus full range? And how much image loss after use it?

Thanks.
If I remember it correctly it will not function with m42 unless you short circuit the contacts.

In addition you'll have to do the coarse focusing yourself, the adapter does the fine tuning...
10-21-2008, 11:31 PM   #3
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Join Date: Apr 2008
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QuoteOriginally posted by qqspm Quote
I have a chance to get a brand new in box of this at about $300.

I have a quite a few maunal lens in hand (m42, M, A), hopefully I can get the autofocus with it.

I am just wondering is it works well with those manual lens with autofocus full range? And how much image loss after use it?

Thanks.
If I remember it correctly it will not function with m42 unless you short circuit the contacts.

In addition you'll have to do the coarse focusing yourself, the adapter does the fine tuning...
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1.7x af, autofocus, k-mount, lens, pentax lens, slr lens, smc f 1.7x
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