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Komura 1.8/100
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PostPosted: Mon Apr 13, 2009 8:11 pm    Post subject: Komura 1.8/100 Reply with quote

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


PostPosted: Mon Apr 13, 2009 8:30 pm    Post subject: Reply with quote

Great shots Voytek!

Cheers, Klaus


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


PostPosted: Mon Apr 13, 2009 8:30 pm    Post subject: Reply with quote

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 ...


PostPosted: Mon Apr 13, 2009 8:33 pm    Post subject: Reply with quote

Very nice so far.
Would love to see it in more challenging light.
Congrats on this fine bucket of fish you caught!


PostPosted: Mon Apr 13, 2009 8:56 pm    Post subject: Reply with quote

Thank you all for nice comments. Some day I will start to take great pictures instead of collecting lenses again and again Cool


PostPosted: Mon Apr 13, 2009 9:02 pm    Post subject: Reply with quote

First copy what I seen!! Komuras strongest part is their saturated color! Try to shoot some flower or green.. it will be more promising!


PostPosted: Mon Apr 13, 2009 9:48 pm    Post subject: Reply with quote

Does it look like that?


PostPosted: Mon Apr 13, 2009 10:01 pm    Post subject: Reply with quote

Front looks the same, body is like below, 18 blades aperture, SN 65762



PostPosted: Mon Apr 13, 2009 10:21 pm    Post subject: Reply with quote

Wow totally wow


patrickh


PostPosted: Mon Apr 13, 2009 11:12 pm    Post subject: Reply with quote

Looks very nice!


PostPosted: Tue Apr 14, 2009 12:15 am    Post subject: Reply with quote

Eh Voytek!!

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


PostPosted: Tue Apr 14, 2009 6:57 am    Post subject: Reply with quote

Bokeh samples @ 1.8

#1

#2


PostPosted: Tue Apr 14, 2009 7:08 am    Post subject: Reply with quote

Komura is one of the legends. Mainly forgotten gems if it wasn't for us lensfanatics. Wink
Congratulations!


PostPosted: Tue Apr 14, 2009 7:51 am    Post subject: Reply with quote

Very Nice!I want it:)


PostPosted: Tue Apr 14, 2009 8:10 am    Post subject: Reply with quote

Great find!

How big and heavy is it?


PostPosted: Tue Apr 14, 2009 1:24 pm    Post subject: Reply with quote

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"



PostPosted: Tue Apr 14, 2009 6:46 pm    Post subject: Reply with quote



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.


PostPosted: Tue Jul 27, 2010 1:16 am    Post subject: Reply with quote

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.


PostPosted: Thu Jul 29, 2010 5:35 am    Post subject: Reply with quote

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.


PostPosted: Fri Jul 30, 2010 11:23 pm    Post subject: Reply with quote

One of my old dream ;
Miss this one on the bay :

Very rare Crying or Very sad


PostPosted: Sat Jul 31, 2010 2:51 am    Post subject: Reply with quote

very nice lens!


PostPosted: Sat Jul 31, 2010 4:39 pm    Post subject: Reply with quote

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?


PostPosted: Sun Aug 01, 2010 3:08 am    Post subject: Reply with quote

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.


PostPosted: Sun Aug 01, 2010 3:11 am    Post subject: Reply with quote

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.


PostPosted: Sun Aug 01, 2010 4:00 pm    Post subject: Reply with quote

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.