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nukemall
Joined: 24 Apr 2012 Posts: 96 Location: Blagoveschensk, Russia
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Posted: Wed Mar 06, 2013 12:48 am Post subject: Technical KMZ 28/2 on the Sony NEX |
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nukemall wrote:
Unidentified technical lens manufactured by KMZ:
It's normal(not wide angle) 28mm lens with planar-biotar(Helios) type optical design and aperture range f/2-f/3.5. Used, maybe, in the microfilm reading device. As the normal lens it must cover frame with diagonal closer to the focal length, that includes cine film frame and APS-C size sensor. Distance between rear lens and image plane when focused at infinity about 20mm, so it do not fit to any DSLR, only for "mirrorless" cameras.
I'm implanted this 28/2 lens to the barrel of the worthless korean 28/2.8, adapted for Sony NEX(подробнее по-русски - http://nukemall.livejournal.com/60553.html).
Now this lens have aperture f/2 - f/8, connected the aperture ring, and Sony NEX mount.
Some samples:
_________________ My blog |
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fuzzywuzzy
Joined: 18 Dec 2010 Posts: 1258 Location: Down East, Canada, eh?
Expire: 2013-11-30
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Posted: Wed Mar 06, 2013 1:27 am Post subject: |
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fuzzywuzzy wrote:
Nice conversion, impressive results!
I don't suppose there are more of these lenses available somewhere? _________________ I welcome C&C, editing my pics and reposting them on the forum is fine.
NEX-F3
~~~~~~~~~
CZJ Sonnar 135/4, Biotar 58/2, Pancolar 50/2, Tessar 50/2.8, Flek 35/2.8, Flek 25/4
Super Takumar 135/2.5, 135/3.5, 100/4 bellows, 50/1.4, 28/3.5
Helios 58/2, 3M-5A 500/8, Mir 20M
Vivitar Series 1 70-210 - - - - - - - - Nikkor 200/4
Rikenon 28/2.8 - - - - - - - - Zeiss 50/1.7 Planar
PB 50/2.4, 135/2.8
Yashica 50/1.9, 28/2.8, 135/2.8
Hexanon 28/3.5, 50/1.4 |
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nukemall
Joined: 24 Apr 2012 Posts: 96 Location: Blagoveschensk, Russia
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Posted: Wed Mar 06, 2013 1:35 am Post subject: |
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nukemall wrote:
I have three more(not converted). _________________ My blog |
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Lightshow
Joined: 04 Nov 2011 Posts: 3666 Location: Calgary
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Posted: Wed Mar 06, 2013 1:57 am Post subject: |
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Lightshow wrote:
I'll take one!!!!
This blows my Industar 69 out of the water, congrats on the nice find. _________________ A Manual Focus Junky...
One photographers junk lens is an artists favorite tool.
My lens list
http://www.flickr.com/photos/lightshow-photography/ |
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Attila
Joined: 24 Feb 2007 Posts: 57865 Location: Hungary
Expire: 2025-11-18
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Posted: Wed Mar 06, 2013 2:08 am Post subject: |
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Attila wrote:
Wow! Congrats! Super power in crap coat ! Stunning indeed! _________________ -------------------------------
Items on sale on Ebay
Sony NEX-7 Carl Zeiss Planar 85mm f1.4, Minolta MD 35mm f1.8, Konica 135mm f2.5, Minolta MD 50mm f1.2, Minolta MD 250mm f5.6, Carl Zeiss Sonnar 180mm f2.8
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nukemall
Joined: 24 Apr 2012 Posts: 96 Location: Blagoveschensk, Russia
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Posted: Wed Mar 06, 2013 2:23 am Post subject: |
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nukemall wrote:
At the open aperture(f/2) this lens not so good - noticeable vignetting and weak contrast, low resolution at the corners, this aperture only for indoor low-light shooting. At f/8 corners much better, but not razor-sharp.
f/2 not corrected:
f/2, corrected vignetting, contrast and colors:
f/8:
_________________ My blog |
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ForenSeil
Joined: 15 Apr 2011 Posts: 2726 Location: Kiel, Germany.
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Posted: Wed Mar 06, 2013 2:29 am Post subject: |
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ForenSeil wrote:
Very very nice conversion and interesting find!
It reminds me a bit to Fujinon 35/1.8 (C-Mount CCTV lens) wide open
Center performance looks good but corner bad even on 1.5x APSC - I'm I would guess it's made for 16mm film, CCTV or similar _________________ I'm not a collector, I'm a tester
My camera: Sony A7+Zeiss Sonnar 55/1.8
Current favourite lenses (I have many more):
A few macro-Tominons, Samyang 12/2.8, Noritsu 50.7/9.5, Rodagon 105/5.6 on bellows, Samyang 135/2, Nikon ED 180/2.8, Leitz Elmar-R 250/4, Celestron C8 2000mm F10
Most wanted: Samyang 24/1.4, Samyang 35/1.4, Nikon 200/2 ED
My Blog: http://picturechemistry.own-blog.com/
(German language) |
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nukemall
Joined: 24 Apr 2012 Posts: 96 Location: Blagoveschensk, Russia
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Posted: Wed Mar 06, 2013 3:04 am Post subject: |
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nukemall wrote:
Compared to CCTV lenses it much better even wide open. If this lens for microfilm reading device - it will work with 18x24mm frame size at about 1:10 reproduction ratio, weak corners in this case not so noticeable. _________________ My blog |
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