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03-05-2008, 08:18 AM   #1
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Pentax K100d Super mount problem?

Hi

I have a Cosinon 135mm f2.8 prime lens that seems to be working weirdly with my K100d Super. First of all, the shake reduction doesn't work with this lens. Camera thinks there is no lens mounted? 2nd, the light that comes off in the view finder when the image is sharp doesn't work. It never flashes with this lens.

I've cleaned the mount and the lens with a cloth and it makes no difference. Has anyone had similar issues? Any ideas?

03-25-2008, 04:20 AM   #2
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Umm I had to enable focus indication with screw mount lenses and this Cosinon lens now works alright. Camera thinks it's a screw mount lens. I guess there are some issues with the mount/lens.
03-25-2008, 02:03 PM   #3
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QuoteOriginally posted by pasipasi Quote
Umm I had to enable focus indication with screw mount lenses and this Cosinon lens now works alright. Camera thinks it's a screw mount lens. I guess there are some issues with the mount/lens.
I was having the same problem as you with a Vivitar 28mm f2.8 and this fixed it! thanks!

Tim
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