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Another 5 dollar baby Mamiya kominar 200/4.5
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PostPosted: Tue Feb 17, 2009 4:27 pm    Post subject: Another 5 dollar baby Mamiya kominar 200/4.5 Reply with quote

Blades were frozen more than 15 Very Happy
Bad fungus on rear element
Took it apart today , loosened aperture and cleaned fungus

Strange to me the aperture blades are situated behind the front group , and not to the rear of the lens as i am used to
is there any benefit to that way for IQ?
did some handheld test shots and will post later tonight

I think it looks promising for the price paid
Any idea to the maker ? I dont think it was made by mamiya


PostPosted: Tue Feb 17, 2009 4:36 pm    Post subject: Reply with quote

I never saaw a Mamiya tele with this design (light cut by the blades so near the front).

In mamiyas pages didn't see it. Kominar was a nitto kogaku brand.

Rino.


PostPosted: Tue Feb 17, 2009 6:08 pm    Post subject: Reply with quote

Interesting find !

What mount is it ?


PostPosted: Tue Feb 17, 2009 6:17 pm    Post subject: Reply with quote

luisalegria wrote:
Interesting find !

What mount is it ?


Hi, Luis.

Being pre-Set lens, the greater probabilities are of the side of which it is Exact or M42 mount.

Mamiya didn't (till I know) make lenses in Exakta mount, so I believe that it would have to be M42.

Made the bets! Laughing

Rino.


PostPosted: Tue Feb 17, 2009 7:27 pm    Post subject: Reply with quote

Rusty. Fascinating find. Show us archaeologists more please.

Rino. Early Mamiya SLRs used the Exakta mount. I have three Mamiya branded, semi-automatic lenses with the Exakta style bayonet. One each 35, 58 and 135. Very nicely made lenses that seem to have no resemblance to the later TL/DTL series.


PostPosted: Tue Feb 17, 2009 7:37 pm    Post subject: Reply with quote

Hi Luis
it is m42 mount , i will post some handheld shots just quickly want to resize it looks rasonably sharp! Very Happy


PostPosted: Tue Feb 17, 2009 8:06 pm    Post subject: Reply with quote

all handheld
the dog @5.6

5.6 crop

open crop

Neighbour's roof at 5.6

center crop

lower righthand side crop


PostPosted: Tue Feb 17, 2009 8:24 pm    Post subject: Reply with quote

Rino
you are right it was made by nitto kogaku , i googled and found the exact one in a picture but japanese text (translation doesnt make sense )


PostPosted: Tue Feb 17, 2009 8:41 pm    Post subject: Reply with quote

WOW. Lucky find.


PostPosted: Tue Feb 17, 2009 9:38 pm    Post subject: Reply with quote

Very interesting find indeed.

I suspect maybe it was a Mamiya-branded lens for the earliest M42-mount Mamiya, the CP/CWP, before the TL/DTL. Maybe 1964-65 ?


PostPosted: Tue Feb 17, 2009 9:45 pm    Post subject: Reply with quote

Great result!


PostPosted: Tue Feb 17, 2009 9:55 pm    Post subject: Reply with quote

Rusty wrote:
all handheld
the dog @5.6

5.6 crop

open crop

Neighbour's roof at 5.6

center crop

lower righthand side crop


First at all, I like the dog. Very Happy

Second, I like the lens too!! Wink

More pics of the lens and with the lens!!!!

Thanks, Rino.


PostPosted: Tue Feb 17, 2009 9:57 pm    Post subject: Reply with quote

casualcollector wrote:

Rino. Early Mamiya SLRs used the Exakta mount. I have three Mamiya branded, semi-automatic lenses with the Exakta style bayonet. One each 35, 58 and 135. Very nicely made lenses that seem to have no resemblance to the later TL/DTL series.


Yes, I forgot this. Embarassed You are right.

Thanks.

Rino.


PostPosted: Tue Feb 17, 2009 10:09 pm    Post subject: Reply with quote

Butkus has the manual for the Mamiya CWP.

http://www.butkus.org/chinon/mamiya/mamiya_cpw/mamiya_cpw.htm

It lists a preset 200/4.5, which I think is very likely to be this one.


PostPosted: Wed Feb 18, 2009 8:06 am    Post subject: Reply with quote

Rino
Better pics of the lens Smile

12 blades

mount side

note the grooves on the rim ?? from factory or home made?


PostPosted: Wed Feb 18, 2009 8:23 am    Post subject: Reply with quote

Lovely, you have the matching hood.

Looks like it works great. An odd bit of history in your hand, thats what i like about these antiques.


PostPosted: Wed Feb 18, 2009 2:41 pm    Post subject: Reply with quote

Rusty wrote:
Rino
Better pics of the lens Smile

12 blades

mount side

note the grooves on the rim ?? from factory or home made?


Daniel

Very, very nice lens. Congratulations!!

And thanks, the pics are beauties. Rino.


PostPosted: Thu Feb 19, 2009 7:22 am    Post subject: Reply with quote

EXCELLENT !! I love the lens. I wish my CWP's would have had one of these attached. I had a 55 f/2 attached to mine.




PostPosted: Sat Feb 21, 2009 2:56 am    Post subject: Reply with quote

estudleon wrote:


mount side


what are the little pin holes, little axles for each blade? and the lens splits in two... very interesting.


PostPosted: Sat Feb 21, 2009 5:36 am    Post subject: Reply with quote

Hi Rino,

Yes, the pins are axles for the blades. Thats very common. All the preset diaphragms I have worked on are just like this.

The construction of this lens looks very much like my Soligor 180/3.5 made by Komine.


PostPosted: Sat Feb 21, 2009 5:42 am    Post subject: Reply with quote

Unique and interesting! Really quite a find, just for the history alone! Add the fact that it looks like a good imaging lens, and you have a treasure! Look at those beautiful rounded blades....wow.