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12-06-2009, 04:29 PM   #1
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Chinon Auto-Focus

I'm trying to find information on Auto-Focus lenses made by Chinon for Pentax SLR'S. There is a set of AF Chinons on ebay for a $10 starting price. One is a 70-210mm 1:4.5 and the other is a 28-70mm 1:3.5-4. I have a Chinon 1:1.9 50mm (manual focus) and it is a great lens. If I could find some info, I believe ten bucks for these 2 might be a good deal
Has anybody out there ever had any experience with chinon AF? I can use all the help I can get(as usual) Thanks


Last edited by jonhock; 12-06-2009 at 05:13 PM. Reason: added the "for Pentax part"
12-08-2009, 04:43 PM   #2
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Just talking to myself...

Maybe I should re-phrase the question.
Does anybody know if there even is such a thing as Auto'focus chinon lenses that fit other cameras besides the chinon?
12-08-2009, 10:58 PM   #3
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no sure but why?

I do not own Chinon lens. But you can find Pentax zoom lenses in similar price range. It is unclear to me the need to have Chinon lenses unless you are a Chinon collector.
12-09-2009, 09:41 AM   #4
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Perhaps this might help:
Chinon AF 50mm F1.7 lens
My understanding is that the Chinon AF lenses were completely self-contained and were designed to work on any k-mount camera. Ricoh had a similar design. I don't believe they migrated the technology to any zooms, however. Do you have a link to the eBay auction?

Steve

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12-09-2009, 10:00 AM   #5
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Steve, that lens was made as a stand alone to work on MF lenses. Some of the later lenses such as those made for the CP-9AF may work on Pentax but may require manual focusing them and vice versa.
12-09-2009, 10:18 AM   #6
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QuoteOriginally posted by Blue Quote
Steve, that lens was made as a stand alone to work on MF lenses. Some of the later lenses such as those made for the CP-9AF may work on Pentax but may require manual focusing them and vice versa.
Thanks for the clarification here. I looked up the CP-9AF and the manual claims compatibility with Pentax KAF lenses. In which case, the Chinon lenses may very well work on a Pentax body, though I would personally be hesitant to spend money to see if that were true!

Steve
12-11-2009, 03:16 PM   #7
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thank you

Thanks guys! The auction for the lenses is over, but I am a very curious person. Once I start to find out about or learn about something I generally stick to it. I haven't been able to find any more on the subject, but I did find out about the CP-9AF SLR and it was my understanding that the Auto-focus for these lenses was only available on that particular camera. It is still an interesting subject though.
Thanks again and Keep on Pentaxing!
12-12-2009, 07:16 PM   #8
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QuoteOriginally posted by stevebrot Quote
(Google is a wonderful tool...)
Butkus page on Chinon CP9-AF etc.

Chris

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