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Explore the world of vintage lenses through repair notes, real test shots, and detailed archive threads packed with images.

Explore the world of vintage lenses through repair notes, real test shots, and detailed archive threads packed with images.
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Komura 1.8/100
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Posted: Mon Apr 13, 2009 8:11 pm
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Posted: Mon Apr 13, 2009 8:11 pm
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Sankyo Kohki Komura 1.8/100 Uni M42, preset, very first shots

Wide open - shallow DOF, better then average


but look what is going on @4.0

to compare, similar picture taken with UV Nikkor 4.5/105 (not mine, borowed)


This one arrived in bunch of other lenses, the most important between them: Fuji 3.5/55 Macro, Noflexar 3.5/35....
Everything cost me less then Flektogon 2.8/20. And everything is in M42... Very Happy


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Posted: Mon Apr 13, 2009 8:30 pm
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Posted: Mon Apr 13, 2009 8:30 pm
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Great shots Voytek!

Cheers, Klaus

Last edited by kds315* on Mon Apr 13, 2009 10:40 pm; edited 1 time in total


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Posted: Mon Apr 13, 2009 8:30 pm
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Posted: Mon Apr 13, 2009 8:30 pm
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Thats a valuable lens !

Not affordable via ebay.

Not to speak of the Novoflex 35.

I think I know your source btw ! Was much too expensive for me even from there ...


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Posted: Mon Apr 13, 2009 8:33 pm
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Posted: Mon Apr 13, 2009 8:33 pm
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Very nice so far.
Would love to see it in more challenging light.
Congrats on this fine bucket of fish you caught!


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Posted: Mon Apr 13, 2009 8:56 pm
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Posted: Mon Apr 13, 2009 8:56 pm
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Thank you all for nice comments. Some day I will start to take great pictures instead of collecting lenses again and again Cool


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Posted: Mon Apr 13, 2009 9:02 pm
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Posted: Mon Apr 13, 2009 9:02 pm
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First copy what I seen!! Komuras strongest part is their saturated color! Try to shoot some flower or green.. it will be more promising!


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Posted: Mon Apr 13, 2009 9:48 pm
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Posted: Mon Apr 13, 2009 9:48 pm
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Does it look like that?


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Posted: Mon Apr 13, 2009 10:01 pm
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Posted: Mon Apr 13, 2009 10:01 pm
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Front looks the same, body is like below, 18 blades aperture, SN 65762



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Posted: Mon Apr 13, 2009 10:21 pm
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Posted: Mon Apr 13, 2009 10:21 pm
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Wow totally wow


patrickh


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Posted: Mon Apr 13, 2009 11:12 pm
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Posted: Mon Apr 13, 2009 11:12 pm
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Looks very nice!


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Posted: Tue Apr 14, 2009 12:15 am
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Posted: Tue Apr 14, 2009 12:15 am
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Eh Voytek!!

I want to say something to you but nothing, nothing leaves my head


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Posted: Tue Apr 14, 2009 6:57 am
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Posted: Tue Apr 14, 2009 6:57 am
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Bokeh samples @ 1.8

#1

#2


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Posted: Tue Apr 14, 2009 7:08 am
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Posted: Tue Apr 14, 2009 7:08 am
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Komura is one of the legends. Mainly forgotten gems if it wasn't for us lensfanatics. Wink
Congratulations!


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Posted: Tue Apr 14, 2009 7:51 am
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Posted: Tue Apr 14, 2009 7:51 am
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Very Nice!I want it:)


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Posted: Tue Apr 14, 2009 8:10 am
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Posted: Tue Apr 14, 2009 8:10 am
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Great find!

How big and heavy is it?


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Posted: Tue Apr 14, 2009 1:24 pm
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Posted: Tue Apr 14, 2009 1:24 pm
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Regarding size and weight it can compare to newer line of 2.8/135 lenses, a bit heavier then Pancolar1.8/50 zebra and a bit bigger then Vivitar 2.5/28. Smaller then Tamron 2.8/90 AD2. This is rather small lens. I do not know is this information valuable.
At the photo below with Tamron 2.8/90 AD2 - Komura with Uni mount and M42/PK, Tamron - "naked"



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Posted: Tue Apr 14, 2009 6:46 pm
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Posted: Tue Apr 14, 2009 6:46 pm
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S/N 65506

Lens was discussed here before: http://www.rangefinderforum.com/forums/showthread.php?t=53934

I've found the results on my Spotmatics very pleasing, but the nearest distance isn't very close (1.4m/ 4.5ft). It's a very short and lightweight lens for a fast 100mm. It's about the size of the early postwar Biotar 75/1.5, which wasn't particular heavy.
Probably the 100/1.8 is an Ernostar design, like most fast telephotos made by Komura. I've just seen a diagram from the 100/2.0 which was made in 1964, some years before, but looks very similar to the 100/1.8 from outline.
All of them seem to be in small S/N range of about 65,xxx-66,xxxx. Probably production was ~ 1,000 or lower.


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Posted: Tue Jul 27, 2010 1:16 am
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Posted: Tue Jul 27, 2010 1:16 am
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My Komura 100/1.8 is serial number 68xxx, so there's probably more than 1000 made.

The rear element is really large, but far from the lens mount. I suspect that the Exakta Unidapter mount I have on it for use on my Topcon "constrains" the light somewhat, due to the small "throat" of the Exakta mount.


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Posted: Thu Jul 29, 2010 5:35 am
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Posted: Thu Jul 29, 2010 5:35 am
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John Shriver wrote:
My Komura 100/1.8 is serial number 68xxx, so there's probably more than 1000 made.

My 105/2.0 is in the same range. I don't think the whole range of numbers was filled.


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Posted: Fri Jul 30, 2010 11:23 pm
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Posted: Fri Jul 30, 2010 11:23 pm
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One of my old dream ;
Miss this one on the bay :

Very rare Crying or Very sad


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Posted: Sat Jul 31, 2010 2:51 am
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Posted: Sat Jul 31, 2010 2:51 am
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very nice lens!


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Posted: Sat Jul 31, 2010 4:39 pm
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Posted: Sat Jul 31, 2010 4:39 pm
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Very interesting. Some might remember I recently purchased an INA 180mm lens that we knew very little about. I looked at another INA which was a 135mm and the seller said "twin KOMURA Sankyo KOHKI JAPAN , produced in the same factory". It has 12 blades to diaphragm if I counted right. Is there anything that might be unique to a Komura build?


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Posted: Sun Aug 01, 2010 3:08 am
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Posted: Sun Aug 01, 2010 3:08 am
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Attila: I saw from a couple of years ago you had a Komura 135mm. How was that lens? From the samples I've seen, the Komura bokeh looks exceptional.


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Posted: Sun Aug 01, 2010 3:11 am
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Posted: Sun Aug 01, 2010 3:11 am
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I have two Komura 135's in M42, f/2.8 and 3.5

Bokeh is excellent, but the distinguishing feature is the handling of color.


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Posted: Sun Aug 01, 2010 4:00 pm
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Posted: Sun Aug 01, 2010 4:00 pm
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woodrim wrote:
Very interesting. Some might remember I recently purchased an INA 180mm lens that we knew very little about. I looked at another INA which was a 135mm and the seller said "twin KOMURA Sankyo KOHKI JAPAN , produced in the same factory". It has 12 blades to diaphragm if I counted right. Is there anything that might be unique to a Komura build?

Over 20 diaphragm blades for the 1.8 quoting the seller.
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