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luisalegria
Joined: 07 Mar 2008
Posts: 6627
Location: San Francisco, USA
Expire: 2018-01-18
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 Posted: Sun May 24, 2009 9:35 pm Post subject: Komura 75-150/4.5 Uni-Auto Zoom - First Komura zoom ? |
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luisalegria wrote:
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 -
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I like Pentax DSLR's, Exaktas, M42 bodies of all kinds, strange and cheap Japanese lenses, and am dabbling in medium format/Speed Graphic work. |
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trifox
Joined: 14 May 2008
Posts: 3614
Location: UK
Expire: 2014-05-29
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| Posted: Sun May 24, 2009 9:40 pm Post subject: |
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trifox wrote:
Hi LUIS
you must have a some magic receipt which allows you to do all these shots..
tf
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Attila
Joined: 24 Feb 2007
Posts: 57849
Location: Hungary
Expire: 2025-11-18
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| Posted: Sun May 24, 2009 10:01 pm Post subject: |
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Attila wrote:
I am afraid we never catch Luis, awesome cat picture , magical!
Others are great , but that cat...
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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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Rolf
Joined: 02 May 2009
Posts: 4123
Location: NRW/Germany
Expire: 2015-12-26
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| Posted: Mon May 25, 2009 8:04 am Post subject: |
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Rolf wrote:
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 ? 
Rolf
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Gurdie
Joined: 29 Jul 2008
Posts: 997
Location: Finland
Expire: 2013-02-20
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| Posted: Tue May 26, 2009 7:05 pm Post subject: |
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Gurdie wrote:
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. 
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Give me two hours a day of activity, and I'll take the other twenty-two in dreams.
― Salvador Dali
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estudleon
Joined: 15 May 2008
Posts: 3754
Location: Argentina
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| Posted: Tue May 26, 2009 10:01 pm Post subject: |
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estudleon wrote:
The cat is a professional model!!
Luis, as always, congratulations. If I see your pics, I can buy all the lenses that you have.
Thanks for share. Really. Regards.
Rino.
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taunusreiter
Joined: 20 Mar 2007
Posts: 127
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| Posted: Tue Jun 02, 2009 9:57 am Post subject: |
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taunusreiter wrote:
Very nice pictures, Thanks.
Where did you get the Komura 1969 catalog? I would be highly interested in a copy (pdf)!
regards, Frank
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luisalegria
Joined: 07 Mar 2008
Posts: 6627
Location: San Francisco, USA
Expire: 2018-01-18
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| Posted: Tue Jun 02, 2009 6:28 pm Post subject: |
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luisalegria wrote:
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.
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I like Pentax DSLR's, Exaktas, M42 bodies of all kinds, strange and cheap Japanese lenses, and am dabbling in medium format/Speed Graphic work. |
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praktiman
Joined: 15 May 2013
Posts: 22
Location: United States
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| Posted: Sat Aug 29, 2015 6:34 pm Post subject: |
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praktiman wrote:
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. |
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Oldhand
Joined: 01 Apr 2013
Posts: 6008
Location: Mid North Coast NSW - Australia
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| Posted: Tue Sep 12, 2017 12:22 am Post subject: |
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Oldhand wrote:
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
#1
#2
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Oldhand
Joined: 01 Apr 2013
Posts: 6008
Location: Mid North Coast NSW - Australia
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| Posted: Tue Sep 12, 2017 12:59 pm Post subject: |
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Oldhand wrote:
My copy has the removable uni-adapter.
T
#1
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Sam Mendolia
Joined: 26 May 2016
Posts: 8
Location: Canada
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| Posted: Fri Oct 30, 2020 3:12 pm Post subject: |
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Sam Mendolia wrote:
i have just started using this lens on my A7R2. love it for B&W.
there is some dust in the rear element, that can be a pain in PP, if i shoot from f11 forward.
i have removed the whole lens assembly, but not able to get that last element out so that i can blow the dust off and clean the glass.
anyone have any experience with this. i have pulled a few lenses apart, and been sucessful with CLA, but this one is bothering me. I also have the Komura 35mm f2.5 that needs some cleaning, but not that bad. both are very useable, but the dust in the zoom is beginning to bother me. |
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D1N0
Joined: 07 Aug 2012
Posts: 2491
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| Posted: Fri Jan 21, 2022 4:53 pm Post subject: |
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D1N0 wrote:
There are different versions but both seem to have the Uni adapter. There is one with built in hood and name ring in front instead of on the side:
Don't know if it is later or earlier.
edit: some research Komura Lens mfg. ltd. was used from the mid seventies, so I guess it is newer tha Luis's version. http://camera-wiki.org/wiki/Sanky%C5%8D_K%C5%8Dki#History
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D1N0
Joined: 07 Aug 2012
Posts: 2491
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| Posted: Sat Jan 22, 2022 11:46 am Post subject: |
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D1N0 wrote:
Found one in Japan. With FD uni Auto-mount mount for 500 yen. Now the 135 with m42 uni-auto mount really has to finally come through customs or I won't be able to use it :p.
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D1N0
Joined: 07 Aug 2012
Posts: 2491
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| Posted: Fri Mar 04, 2022 8:14 pm Post subject: |
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D1N0 wrote:
A first test shot:
 Messkeh by The lens profile, on Flickr
These lenses must have cost an arm and a leg back in the days. I think perfomance is better than the primes (I have 2 135's and a 200) As sharp as I have seen from a zoom
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Doc Sharptail
Joined: 23 Nov 2020
Posts: 987
Location: Winnipeg Canada
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| Posted: Sat Mar 05, 2022 5:46 am Post subject: |
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Doc Sharptail wrote:
Interesting lens and very nice images here.
Intrigued that an adapter system for different camera makes appeared that early.
-D.S.
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Oldhand
Joined: 01 Apr 2013
Posts: 6008
Location: Mid North Coast NSW - Australia
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| Posted: Sat Mar 05, 2022 6:22 am Post subject: |
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Oldhand wrote:
| D1N0 wrote: |
These lenses must have cost an arm and a leg back in the days. I think performance is better than the primes (I have 2 135's and a 200) As sharp as I have seen from a zoom |
I agree with you that these lenses must have been very expensive to make. And for their day, very good indeed.
They exude quality and are silky smooth to operate - mine are anyway.
There is a gentle softness sometimes wide open that is very appealing, and closed down they can be quite sharp enough.
Here are a few shots to share:
#1
#2
#3
#4
#5
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martinsmith99
Joined: 31 Aug 2008
Posts: 6943
Location: S Glos, UK
Expire: 2013-11-18
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| Posted: Sun Mar 06, 2022 10:49 am Post subject: |
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martinsmith99 wrote:
The lack of later lens coatings is giving it quite a low contrast/vintage character.
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Oldhand
Joined: 01 Apr 2013
Posts: 6008
Location: Mid North Coast NSW - Australia
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| Posted: Sun Mar 06, 2022 11:36 am Post subject: |
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Oldhand wrote:
| martinsmith99 wrote: |
| The lack of later lens coatings is giving it quite a low contrast/vintage character. |
Most Komuras are like this, and that is their appeal.
Apart from their excellent primes, there is also the Super-Komura 90-250mm f4.5 which performs similarly.
These zooms are not to be confused with the later Komuranons, which are not as good in my opinion
Tom |
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D1N0
Joined: 07 Aug 2012
Posts: 2491
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| Posted: Sun Mar 06, 2022 12:07 pm Post subject: |
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D1N0 wrote:
| martinsmith99 wrote: |
| The lack of later lens coatings is giving it quite a low contrast/vintage character. |
I have two 135's a Komura and a Super-Komura. The Super-Komura has more modern coatings (and is more contrasty wide open) but this one is also a Super-Komura but still has the blueish single coating. There are later versions of this lens (all black) that probably have the more modern coating. The Difference between Komura and Super-Komura seems the be the mount adapter. Komura is a screw type like T-mount Super-Komura is a Bayonet type.
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D1N0
Joined: 07 Aug 2012
Posts: 2491
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| Posted: Sun Mar 06, 2022 8:31 pm Post subject: |
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D1N0 wrote:
weird stuff going on in the bokeh balls. Must be separation
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Oldhand
Joined: 01 Apr 2013
Posts: 6008
Location: Mid North Coast NSW - Australia
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| Posted: Sun Mar 06, 2022 9:56 pm Post subject: |
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Oldhand wrote:
Here are some sample Komura coatings.
#1
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visualopsins
Joined: 05 Mar 2009
Posts: 10532
Location: California
Expire: 2025-04-11
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| Posted: Mon Mar 07, 2022 12:13 am Post subject: |
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visualopsins wrote:
 Wow! Nice collection too!
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D1N0
Joined: 07 Aug 2012
Posts: 2491
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| Posted: Tue Mar 08, 2022 5:30 pm Post subject: |
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D1N0 wrote:
One at 150mm wide open.
 Crokeh light by The lens profile, on Flickr
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pentaxian |
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Oldhand
Joined: 01 Apr 2013
Posts: 6008
Location: Mid North Coast NSW - Australia
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| Posted: Tue Mar 08, 2022 9:35 pm Post subject: |
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Oldhand wrote:
Simply beautiful
Congratulations
Tom |
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