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04-18-2018, 07:32 AM   #1
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Is this a pentax compatible mount? Sigma Z Pantel 135 2.8 pan 64

Can someone tell me if this is a Pentax K compatible mount?
It was advertised as Pentax but It does not fit camera.

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04-18-2018, 07:34 AM   #2
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Nikon F-mount
04-18-2018, 07:49 AM - 1 Like   #3
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FYI

while browsing the web, I found this:

" So you've found a lens and you don't know what camera it fits? Scroll down this set of photos until you find the one that it looks like. I don't have everything here, but I have most of the more common ones for manual-focus, focal plane shutter 35mm SLRs. " - SLR Lens Mount Identification Guide

perhaps it might help in the future
04-18-2018, 08:03 AM   #4
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Thank you for the replies.

04-18-2018, 08:47 AM   #5
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QuoteOriginally posted by Rudy Quote
Thank you for the replies.
Older F-mount lenses are usually easy to identify by the rabbit ears on the aperture ring...also look for the lens release slot. On a K-mount lens it is next to the bayonet flag and aperture lever. On a F-mount lens the aperture lever and bayonet flag are on the opposite side of the lens.

Last edited by boriscleto; 04-18-2018 at 11:47 AM.
04-18-2018, 09:15 AM   #6
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QuoteOriginally posted by boriscleto Quote
On a K-mount lens it is next to the bayonet flag and aperture lever. On a F-mount lens it is near the aperture lever and bayonet flag are on the opposite side of the lens.
I may be misreading you but isn't that the opposite if what's seen here? The lens release slot on this lens is opposite the aperture activation lever. Which matches my own AI 50mm f2 on my Nikkormat FT-3.
04-18-2018, 11:34 AM - 1 Like   #7
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Perhaps this illustrates things better than I can explain (Please excuse the dusty lenses)

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