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06-14-2018, 02:11 AM   #1
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Any help would be awesome, f-- on K2000

Hi guys

I have just received a sigma 100-300mm zoom lens I want to use for my Pentax k2000 I have put the lens in fits perfectly but I get this flashing F.... Having until recently only used cannon products this one's confused me..... Is there something wrong? Any help would be great

Thanks in advance

06-14-2018, 02:25 AM   #2
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It usually means that the aperture ring is not on A
06-14-2018, 02:46 AM   #3
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QuoteOriginally posted by ffking Quote
It usually means that the aperture ring is not on A
...or if it is and you're still getting the flashing F- then the lens contacts may need cleaning: usually, a wipe over the contact balls with a chamois or a microfibre cloth will suffice. Most often, though, I find that I've accidentally bumped the aperture ring off the A.
06-14-2018, 03:05 AM - 2 Likes   #4
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Thanks guys it was the aperture ring it was just off A clicked it over and it's working just fine thanks so much for your help

06-14-2018, 06:35 AM   #5
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How to use/meter Manual & M42 Lenses on all Pentax DSLRs (K-1, K-3, K-5, K-30, etc) - PentaxForums.com
06-14-2018, 09:00 AM   #6
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Is that the f/4.5-6.7? I really like my copy, fast to focus and fine image quality. Mine can reach 260mm before falling to f/6.7.
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