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Old Jul 10, 2006, 5:50 AM   #1
TDN
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As I mentioned before, I bought this one by mistake on ebay.

Turns out it was an even bigger mistake.

http://cgi.ebay.com/ws/eBayISAPI.dll...m=330000469029

It shows P/K-A and R/P-K marked on the lens mount. When I tried to put it on my DL, to test it, it didn't fit in there! The mount was too deep and wouldnt even fit in the mount! (I even lightly scratched some plastic inside the mount because of this:sad

So now I hope the seller will give me a refund, but I might have to resell the lens.

What mount should I mention then? On which cameras will it fit?

My guess is that it's for those old Ricoh and Pentax "Program A" cameras, but thats a hunch.

TDN


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Old Jul 10, 2006, 7:54 AM   #2
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I find that interesting. I have a Vivitar MF tele-converter that I don't use only because I have an AF version. But it is PK-A/R-PK mount and it fits exactly.


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Old Jul 10, 2006, 8:14 AM   #3
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Check these threads to see if it has anything to do with your problem:


http://www.stevesforums.com/forums/v...elp+lens+stuck

http://www.stevesforums.com/forums/v...elp+lens+stuck

http://www.stevesforums.com/forums/v...elp+lens+stuck


http://www.stevesforums.com/forums/v...=80&page=1

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Old Jul 10, 2006, 9:02 AM   #4
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I read all those, but that's a different problem than mine.

Those lenses all get stuck on the camera, mine doesnt even screw in!

Here's some pictures of it next to my (also KA-mount) Tokina SZ-X:




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Old Jul 10, 2006, 9:58 AM   #5
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bilybianca wrote:
Quote:
Check these threads to see if it has anything to do with your problem:


http://www.stevesforums.com/forums/v...=80&page=1
Here ismy picture from the post referenced by Kjell, these lenses can be a real problem if you have not been warned. As for the large built up section inside the mount, that is a new one on me, I guess the best advice is to beware of 3rd party lenses that have strange looking mount configurations.



Ira
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Old Jul 10, 2006, 12:42 PM   #6
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I can tell you exactly what the problem is - the mount is for Ricoh KR1 cameras, which have a similar mount adapted from the pentax one. You can apparently cut the mount down, but it is better to get a refund.

Did the same from a second-hand camera shop - really nice Sigma 70-300 manual focus lens. Took it back for a refund.



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Old Jul 10, 2006, 6:09 PM   #7
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The seller was very friendly when I made him aware of the problem, and he proposes to replace my lens for a different 28-200 mm, which he is sure fits on a ME super.

this is what he thinks the problem is:
"The lens you have might be a Praktika Bayonet fit for the Praktica electric range of cameras, i do recall having one. If it is i apologise, my error."

He's offering to pay my shipping for the lens back to the UK, and he will send me the other one, free of charge.

I'm going to take him on his offer.

TDN
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Old Jul 10, 2006, 7:14 PM   #8
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Sounds like a good honest fellow. Accept the replacement and hope for the best. Don.
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Old Jul 11, 2006, 12:44 PM   #9
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A few minutes with a dremel tool (after masking carefully to avoid metal chips mucking up the works) fixed the same problem with my 70-150mm Vivitar.

Better to return it if you can tho.

Bob


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Old Jul 11, 2006, 3:09 PM   #10
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i remember seeings this about another vivitar. they cut the flange off and problem solved..

roy
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