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Komura 75-150/4.5 Uni-Auto Zoom - First Komura zoom ?
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PostPosted: Sun May 24, 2009 9:35 pm    Post subject: Komura 75-150/4.5 Uni-Auto Zoom - First Komura zoom ? Reply with quote

This lens is from perhaps 1967-1970. It is listed in the Komura 1969 catalog -



This lens came before the larger and rather elegant Komura 90-250/4.5, also present in the 1969 catalog.

This particular one came in Nikon mount, unfortunately the "ears" were missing. It does mount very securely on my Pentax, like many old Nikon-mount lenses. The mount is labelled Uni-Auto, which was Komura's interchangable lens system, though I cannot see how this particular mount can be exchanged, it doesn't have the Uni-Auto unlocking mechanism. A mystery.

Its a constant-aperture two-touch zoom that keeps its point of focus while zooming, which was a mark of a quality zoom at the time. Fit and finish, and construction quality are all first-rate, which is also a Komura characteristic. For the focal range and aperture though, it is a rather large lens. More than anything this indicates its age. Close focus is also a bit longer than became usual for zooms, this gets down only to 2M/6 feet.

I have no complaints about its performance. This is a perfectly usable, very sharp lens, just a bit soft wide-open at f/4.5, otherwise at least within the limits of my sensor. It has no particular problem with flare or color fringing, though it does show a bit of red fringe sometimes.

At least in the 1960's, Komura lenses were as good as any.

















The bird -



crop -



PostPosted: Sun May 24, 2009 9:40 pm    Post subject: Reply with quote

Hi LUIS

you must have a some magic receipt which allows you to do all these shots..

tf


PostPosted: Sun May 24, 2009 10:01 pm    Post subject: Reply with quote

I am afraid we never catch Luis, awesome cat picture , magical!

Others are great , but that cat...


PostPosted: Mon May 25, 2009 8:04 am    Post subject: Reply with quote

Congratulations.

The best cat picture I have seen within the last months. Can you tell me something about your PP procedure. Special programm ?

BTW: is the bird a special friend of you ? Laughing Laughing Laughing Laughing

Rolf


PostPosted: Tue May 26, 2009 7:05 pm    Post subject: Reply with quote

Top quality, as ever!

I think that Luis could teach every one of us a lesson about bird taming, camera handling and PP, too. Maybe we should collect some money and invite him to Europe. Very Happy


PostPosted: Tue May 26, 2009 10:01 pm    Post subject: Reply with quote

The cat is a professional model!! Laughing

Luis, as always, congratulations. If I see your pics, I can buy all the lenses that you have. Very Happy

Thanks for share. Really. Regards.

Rino.


PostPosted: Tue Jun 02, 2009 9:57 am    Post subject: Reply with quote

Very nice pictures, Thanks.

Where did you get the Komura 1969 catalog? I would be highly interested in a copy (pdf)!

regards, Frank


PostPosted: Tue Jun 02, 2009 6:28 pm    Post subject: Reply with quote

The Komura catalog is here -

http://www.cameraeccentric.com/info.html

Along with a lot of other very useful and interesting catalogs.

This gentleman has done a great public service in scanning and posting all this material.


PostPosted: Sat Aug 29, 2015 6:34 pm    Post subject: Reply with quote

Luis,

I have a Komura 135 with the same mount riddle. Beauty ring labelled "Sankyo Kohki Japan Super-Komura Uni Auto [etc.]", and lens mount labelled "Komura Uni Auto", but sans the release button or "lock/unlock" label. The mount will not budge. I think I may have posted about it here some years ago. Quite confounding.


PostPosted: Tue Sep 12, 2017 12:22 am    Post subject: Reply with quote

This is a beautiful lens both in appearance and in use.
The focusing helicoid is so silky smooth it can be done with one finger.
It feels a little like the IF telelenses from Canon and Nikon in this regard.
I like it for its soft beauty wide open.
Here are some images. The second one has had some help from PP but you can see from the first, what the starting point resembled.
Tom


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PostPosted: Tue Sep 12, 2017 12:59 pm    Post subject: Reply with quote

My copy has the removable uni-adapter.
T


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