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Older lens from slr days

I have a Pentax SLR ( the film type ) from the 80's and was wondering if the zoom lenses from those days will work with the new Penatx DLR's . I mean are the lens mount systems different or what ?

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Pentax slr lens

In reply to: Older lens from slr days

I had one expert tell me that Pentax lens are the only ones that are interchangeable with the newer Pentax DSLR's..That has been a while back so maybe someone else out there can give you more updated info! [g]

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Yes

In reply to: Older lens from slr days

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May not prove worthwhile

In reply to: Older lens from slr days

The situation may be different for Pentax, but I found that--for Olympus 4/3 DSLR--that one can use the film SLR lenses (for which Olympus offers an adapter) but Olympus also has a table that shows the f-range and lens range where the old lenses will work on the DSLR body. I found that after correcting for the digital lens factor (2:1 for my camera) that the useable performance of my better quality old lenses was no better than the inexpensive line of digital lenses. The old lenses aren't recommended for use with the lenses stopped wide open. When doubling the effective lens length, my expensive large-aperture, wide angle lenses are just regular length on the new camera and can't be used at full aperture.
As a result, the only one of my lenses that ended up worth keeping was a 400mm telephoto. It's now an 800mm lens, but I do give up autofocus (it's a manual lens). At least the Olympus's image stabilization in the camera body provides IS with this lens as well. Helpful with that long a lens!

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