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04-12-2012, 09:50 AM   #1
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Questions about some lenses

Hi,Gang. I have been looking around for some more lenses for my k2000.I found some on eBay. I would like your opinion about them,please,and if they be used w/my camera.I have no problem running a lens using "M."
Thank you !
Annie
Here they are:
Pentax Takumar 135mm f/2.5 K-mount. 20 bucks

Pentax Takumar PK mount 28mm f/2.8 WA 20 bucks

Spiratone Auto 3x Telextender (2 of them) 5 bucks



Seikanon 28mm f/2.8 1:4 Macro WA A lens 63 bucks


Last edited by PenPen; 04-12-2012 at 10:08 AM. Reason: Chance of the lens sticking to my camera.
04-12-2012, 09:57 AM   #2
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They should work, but I'd do a search for "Ricoh pin" to make sure that ricoh lens is kosher.

A guide on how to use these lenses is found here:https://www.pentaxforums.com/forums/pentax-lens-articles/110657-how-use-meter...k-x-k-7-a.html
04-12-2012, 10:00 AM   #3
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Thank you!!
04-12-2012, 10:07 AM   #4
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I checked and there is a slight chance of the lens getting stuck on my camera,and I am not willing to chance it!! Thank you!!

04-12-2012, 10:52 AM   #5
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Go Tak(s) ...

QuoteOriginally posted by PenPen Quote
Hi,Gang. I have been looking around for some more lenses for my k2000.I found some on eBay. I would like your opinion about them,please,and if they be used w/my camera.I have no problem running a lens using "M." Thank you ! Annie
Here they are:
Pentax Takumar 135mm f/2.5 K-mount. 20 bucks
Pentax Takumar PK mount 28mm f/2.8 WA 20 bucks ...
Bonjour PenPen,

Don,'t how you could go wrong with these 2 Taks given the prices ... assuming good shape, etc. I just found today a Tak 135/2.5 at "ffordes" in the UK ( http://www.ffordes.com/product/12022417051681 ) and they want 39 for it, thus about $50 or under. The PF user reviews of this lens are all over the place ... use a hood and it cannot be that bad.

Allez et bon courage, J Frog
04-12-2012, 11:29 AM   #6
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The only one I have experience with is the 135/2.5 and under the right conditions it performs very well. It can produce purple fringing, but it's easily handled in post processing.

I also have a Yashica ML 135/2.8. Just for giggles (ok, I was bored) I set up and shot them against each other using my NEX-5N. All said and done the ML is probably better shooting into the light, but I like the Pentax bokeh better.

Here's a couple shot wide open. Light from the big picture on the right of the frame. Focus point was the right edge of the lamp shade. The lamp sits about 4 feet in front of the bookcase and the camera was 22 feet (I just measured ) from the center of the lamp. Shot in RAW, opened in CS5 with default settings, 800x800 pixel crop, converted to jpg. Pentax first, Yashica second.





Please note that stopped down one stop the Pentax purple fringing disappeared.
04-12-2012, 12:22 PM   #7
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QuoteOriginally posted by PenPen Quote
Pentax Takumar 135mm f/2.5 K-mount. 20 bucks

Pentax Takumar PK mount 28mm f/2.8 WA 20 bucks
I've had both of these labeled as Takumar Bayonet. Both perform quite well, even without more advanced coatings. I sold the 28 because 1) it's fairly average and 2) my M28/2.8 made it rather redundant. I have many 135s, including some with better optics, but the TakBayonet 135/2.5 is what I carry and use the most, because 3) the built-in hood and 4) it focuses closest of my 135s. Neither of these has a Ricoh pin; that only exists on some A-type lenses, and these are both K|M-type. Those are excellent prices -- grab them!

QuoteQuote:
Spiratone Auto 3x Telextender (2 of them) 5 bucks
I've never seen these in PK mount, only M42. I've had a few; I keep one just for lulz. If these are M42, don't bother; if they're actually PK mount, grab them, they're rare. Just don't expect highest optical quality. 3x TCs are useful for surveillance, blackmail, crime planning, situations where content is more important than IQ.

QuoteQuote:
Seikanon 28mm f/2.8 1:4 Macro WA A lens 63 bucks
Sorry, I can't help with this, have no idea which lens foundry actually churned it out. Do you know the serial number? That *might* give us an idea of who made it. The price seems rather high. Again, unless it's an A-type lens, with an aperture ring with an A(P) or P position, it can't have a Ricoh pin. Good luck!
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