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09-17-2007, 12:31 PM   #1
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I have a pentax SF-1 auto-focus camera with a Takumar telephoto lens. Does anyone know if this type of auto fucos telephoto lens would be compatible with say the petax digital cameras, like the K100D?

Thank you

09-17-2007, 12:56 PM   #2
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The Tak is auto focus? If so it is fully compatable with all the DSLR's from the *ist D through to the K10D.
09-17-2007, 01:21 PM   #3
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The SF-1 is a k-mount camera and as such, the lenses that fit it, will fit the new DSLR's. Including auto-focus lenses. Nearly all Pentax lenses will fit the new DSLR's, some need an adapter. There are a few out there that are k mount and do not fit at all however. They would be early k mount lenses that were designed for manual-focus k mount cameras. These have an elongated shutter guide that interferes with the AF mechanism inside modern auto-focus capable k mount cameras preventing the lens from even being mounted. Some of these lenses can be adapted to fit with the removal of the shutter guide. Usually 3 small screws holding the guide in, remove the screws and the entire guide and the lenses work fine.
09-17-2007, 01:43 PM   #4
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Thanks for your replies. You have been all very helpful and saved me a decision that I may have later regretted. Thank you


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