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12-30-2010, 07:39 AM   #1
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Checking out a SMC Pentax-A 1:1.7 50mm today...

Hi all,

New Pentax K-r Red owner here and I'm already hunting down vintage, manual focus lenses for it! I have the 18-55mm kit lens. However, I'm finding it's not quite fast enough, aperture wise, for low light photography - I snap in a lot of dimly lit, underground clubs.

Later today, I'm going to check out a SMC Pentax-A 1:1.7 50mm lens - pictured below - that's part of an estate sale. Is there anything in particular I need to be aware of when doing my inspection?

I intend to take along my K-r, and the manual, to try out the lens on the spot. And, if all goes well, I'll probably hand the guy some cash and walk away with it.

Kind regards

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12-30-2010, 07:50 AM - 1 Like   #2
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Inspect the glass for scratches, and the inside for "webs" - that would be fungus and it's expensive to clean it out.

There's a little lever on the back of the lens... pull it to open the aperture blades up. Look for anything that looks like oil inside the lens... either on the blades, or on the glass. That could be a sign of trouble.

See if you can grab it for 10 bucks .

It's a wonderful lens for low light... very sharp at f2.
12-30-2010, 07:59 AM   #3
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Thanks!
12-30-2010, 08:18 AM - 1 Like   #4
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It's worth a bit more than 10 bucks though, $80-90 is probably a fair price. Just beware that manual focusing can be really hard with such wide apertures and the K-r viewfinder. I find that I have to use Live View often and it's hard when your subject is moving!

12-30-2010, 08:22 AM - 1 Like   #5
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It is very nice lens to have, provided it is in ok condition (and the price is right, I'd agree with kari about that). This might help: https://www.pentaxforums.com/forums/pentax-lens-articles/59245-pawnshop-lense...ers-guide.html.
12-30-2010, 08:25 AM   #6
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Yes, I intend to use it stepped down a bit and with Live View! However, seeing as I like to use a lot of panning and blurring in my pix, I doubt I'll have much of a problem with it at f2 or lower.

Cheers!
12-30-2010, 08:56 AM   #7
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Curious of what lens attached to the body is. Looking at the red rim on it, it looks like a Vivitar Series 1. If so, Series 1's are mostly good lenses. Great if you can get a good deal for these. Good luck!
12-30-2010, 09:41 AM   #8
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The lens attached to the camera looks like the Tokina SD 70-210mm F4.0-5.6. Check out the PF lens database for review.

12-30-2010, 10:31 AM   #9
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Hehe I was joking about the 10 bucks, but you never know...

I would say 50 is a good price, 75 is fair, 100 is meh.
12-30-2010, 10:35 AM   #10
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Snap:

Come over to the dark side. Buy yourself the Pentax M42-K adapter, get some Taks, and join us in The Takumar Club.

We don't bathe too often, but we have a lot of fun.
12-30-2010, 11:27 AM   #11
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The aperture ring should move freely on the A50/1.7, and particularily into the A position. Once it's in the A position and working, you can just leave it there.

I don't put any value on old cameras. If you start looking at them as "interesting" or "maybe it's worth $25" or "I might shoot film", pretty soon you'll have a box full of them. This series of camera often has a dead battery, and the battery costs enough to seriously impact potential resale profit.
12-31-2010, 01:09 AM   #12
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Thanks for all the tips, peeps!
01-02-2011, 11:14 PM   #13
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First Pentax-A 1:1.7 50mm Test Shots

First Pentax-A 1:1.7 50mm Test Shots. More photos @ 1 Snap Music!: First Pentax-A 1:1.7 50mm Test Shots
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01-02-2011, 11:30 PM   #14
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QuoteOriginally posted by paperbag846 Quote
Hehe I was joking about the 10 bucks, but you never know...

I would say 50 is a good price, 75 is fair, 100 is meh.
I wound getting a bundle of 3 vintage lenses - the 1.7 50mm, a Soligor 5.5 300mm, and a Tamron 3.8-4 80-210mm - for $85 (NZD)! Yeah! I'm a happy man!
01-03-2011, 01:09 AM   #15
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Good for you :-) How do you find the Soligor? (It would seem a reasonably common, not too expensive piece ...).
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