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12-31-2008, 06:57 AM   #1
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Pentax K 35mm f2.0

Hi,

Does this lens have a rotating front element? If not, it would seem like a perfect lens to use on my K10D with the Pentax Stereo Adapter. The adapter needs a FOV close to 50mm (in 35mm format) and couples to filter thread size 52mm.

This lens also has pretty nice light gathering abilities and I guess optical quality is also good (though only one review in the lens review section...) ? So it could perhaps serve more general photographic duties as well.

Thanks for any info on the lens.

Best regards and a Happy New Year!

Boucicaut

12-31-2008, 08:16 AM   #2
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No it doesn't have a rotating element. Big chunk of metal and glass, 8 element/7 groups. Like a few have said, it's a little soft @ f/2 but quite sharp from 2.8 onwards, but I've only used it on film. I picked up mine from KEH.com and it's become my normal walkaround.

I don't suppose you could use a step-down ring and use on of the M or A series?

Last edited by CSoars; 12-31-2008 at 03:13 PM. Reason: spelling
12-31-2008, 08:36 AM   #3
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QuoteOriginally posted by CSoars Quote
Not it doesn't have a rotating element. Big chunk of metal and glass, 8 element/7 groups. Like a few have said, it's a little soft @ f/2 but quite sharp from 2.8 onwards, but I've only used it on film. I picked up mine from KEH.com and it's become my normal walkaround.

I don't suppose you could use a step-down ring and use on of the M or A series?
Thanks! Looks like I can start the search for a cheap copy. I guess using a step-down ring is also a possibility though.
12-31-2008, 11:19 AM   #4
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QuoteOriginally posted by Boucicaut Quote
Thanks! Looks like I can start the search for a cheap copy.
Good luck with that!

12-31-2008, 11:49 AM   #5
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QuoteOriginally posted by Miserere Quote
Good luck with that!
So what kind of price should I expect for a copy in, say, EX condition in KEH terms?
I'm not in a hurry with this, I can wait for a good offering
12-31-2008, 12:34 PM   #6
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I think I paid $235 USD for my copy, EX rated. They wanted to tack on $65 USD shipping via UPS, but I convinced them to send it by regular US Post to save some money.
12-31-2008, 12:49 PM   #7
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I didn't know there was such a thing as a stereo adapter!

I hope you realize that by bringing it up here, you have obligated yourself to post some 3-D pictures once you have all the equipment together.

12-31-2008, 01:07 PM   #8
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QuoteOriginally posted by CSoars Quote
I think I paid $235 USD for my copy, EX rated. They wanted to tack on $65 USD shipping via UPS, but I convinced them to send it by regular US Post to save some money.
Oops! Looks like won't be getting one very soon. Maybe sometime in the spring (translation: the wife does not approve at the moment).

12-31-2008, 01:13 PM   #9
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QuoteOriginally posted by Quicksand Quote
I didn't know there was such a thing as a stereo adapter!

I hope you realize that by bringing it up here, you have obligated yourself to post some 3-D pictures once you have all the equipment together.

I certainly would do that but, alas, you need a special monitor for on-screen viewing of the images. If you print them (digital or film) you still need a viewing device (looks like a pair of el cheapo goggles).

Old adapter:
Pentax Stereo Adapter for SLRs

New gadget (which I have):
Pentax Stereo Adapter 3D Set (3D image viewer included) - Digital Camera Warehouse Australia
12-31-2008, 02:06 PM   #10
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QuoteOriginally posted by CSoars Quote
Like a few have said, it's a little soft @ f/2 but quite sharp from 2.8 onwards, but I've only used it on film. I picked up mine from KEH.com and it's become my normal walkaround.
I am a VERY hard marker (see my lens reviews on this site), I just don't see that softness at f/2, it is stunning wide open. This is a first rate lens. In pure optical terms it bests the 77 limited IMHO. Probably the best lens I ever used optically, it just works.
12-31-2008, 02:38 PM   #11
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This is f/2 ... 100% crop no less. Hand held 1/13th sec.

12-31-2008, 03:11 PM   #12
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QuoteOriginally posted by Alfisti Quote
I am a VERY hard marker (see my lens reviews on this site), I just don't see that softness at f/2, it is stunning wide open. This is a first rate lens. In pure optical terms it bests the 77 limited IMHO. Probably the best lens I ever used optically, it just works.
It is a fantastic lens, and I've only run about 3 rolls of film through it so far, so I'm not completely familiar with it in every situation. I can tell the difference between f/2 and f/4, though, it's brutally crisp stopped down, even with home-developed ISO 400 film.

So maybe I should rephrase that it's a little soft wide open compared to the rest of the range, but holds its own wide open compared to other lenses. Kind of like the DA 70, which is very useable wide open.

Good to see other people have it too, it seems overlooked quite a bit
12-31-2008, 03:12 PM   #13
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QuoteOriginally posted by Alfisti Quote
This is f/2 ... 100% crop no less. Hand held 1/13th sec.

Very impressive indeed.
12-31-2008, 03:18 PM   #14
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Sorry for big Images

Some resized 1600 DPI scans


at f/2, ISO 200, 1/30th


at f/4, ISO 400, 1/30th
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