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Isco-Göttingen Westagon Westrocolor 50mm 1.9 M42
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PostPosted: Mon May 27, 2019 5:04 pm    Post subject: Isco-Göttingen Westagon Westrocolor 50mm 1.9 M42 Reply with quote
Added 2 lenses to the Isco collection. Already got one Tele-Westanar 135 3.5 'zebra/red/window'. Not sure but looks like the Westagon (on Edixa in pic) matches the Westrocolor 50 1.9 and is of same outer design as the 135s. Is the Westagon same as Westrocolor, just different names, or is the optics/blades any different? Do they optically match the Schneider Xenon? Is there any other lens, apart from the 35mm 2.8 that share the outer design?

http://m42lens.com/m42-lens-database/95-schneiderkreuznach-edixa-xenon-50mm-f19220-z

http://forum.mflenses.com/isco-gottingen-westrocolor-50mm-f19-t45655.html



Last edited by roglebk on Tue May 28, 2019 12:24 am; edited 2 times in total


PostPosted: Mon May 27, 2019 11:59 pm    Post subject: Reply with quote
Excellent question! I don't know. Isco naming convention seem a total conundrum to me. Nice lenses though, both isco in general and the ones in your photo. The look of that particular version is one of my favorite lens as to cosmetics design. Just elegant.


PostPosted: Tue May 28, 2019 12:20 am    Post subject: Reply with quote
Yeah, that particular series is real lookers and all metal high quality. Is there any Isco that really stands out optically and one that is good to stay far away from? Alu ones looks nice too but quite slow. If someone got any interest in the camera bits and bags send a pm, not collecting Edixa stuff.


PostPosted: Tue May 28, 2019 10:57 am    Post subject: Reply with quote
Not sure about the ISCO lenses, but the camera bag in your picture is very cool...


PostPosted: Wed May 29, 2019 11:14 am    Post subject: Reply with quote
Probably half a cow went into that bag Wink


PostPosted: Wed May 29, 2019 12:37 pm    Post subject: Reply with quote
I have the feeling that the Westrocolor 50 1.9 is the same optically as the Westagon.
The Westrocolor 50 1.9 is a very nice lens and performs very well.
T


#1


#2


PostPosted: Wed May 29, 2019 1:40 pm    Post subject: Reply with quote
Is the Westacolor 6/5 or 6/4 design? I find claims of both on google.


PostPosted: Wed May 29, 2019 11:34 pm    Post subject: Reply with quote
Like 1 photos!


PostPosted: Wed Nov 22, 2023 12:31 pm    Post subject: Reply with quote
Is this lens a relative of the Schneider xenon?


PostPosted: Tue Nov 28, 2023 6:21 pm    Post subject: Reply with quote
Gatorengineer64 wrote:
Is this lens a relative of the Schneider xenon?


Smile I wanted to ask the same. The bokeh for one looks very similar (i.e. absolutely lovely!).
They certainly are related in some way, just as Schneider and Isco are. But how much? Are they the same?


PostPosted: Mon Dec 04, 2023 7:19 pm    Post subject: Reply with quote
I love those zebras. Optically, they are average IMO. You still miss the 35mm in your collection Wink


PostPosted: Thu Jul 18, 2024 1:43 pm    Post subject: Reply with quote
Oldhand wrote:
I have the feeling that the Westrocolor 50 1.9 is the same optically as the Westagon.


"Feelings" can be deceptive Wink. I just have compared an ISCO Westagon 1.9/50 with a recently acquired ISCO Westrocolor 1.9/50, and their performance is quite different (landscape images, 24 MP FF sensor). The Westrocolor is clearly better, and its performance and rendering remind me of the classical SLR Nikkor 2/50mm.

Looking for some more informaton I found that the Westagon (around 1952) in fact is a different design than the Westrocolor (around 1958):
https://photobutmore.de/exakta/isco/

Westrocolor (for Exacta) was also marketed as Westromat (for Edixa-mat).

Oldhand wrote:
The Westrocolor 50 1.9 is a very nice lens and performs very well.
T

Agreed.


PostPosted: Thu Jul 18, 2024 5:04 pm    Post subject: Reply with quote
stevemark wrote:

Looking for some more informaton I found that the Westagon (around 1952) in fact is a different design than the Westrocolor (around 1958):
https://photobutmore.de/exakta/isco/


Here are some possible designs from different sources:

#1


PostPosted: Thu Jul 18, 2024 6:27 pm    Post subject: Reply with quote
Max78 wrote:

Here are some possible designs from different sources:
...


Thanks a lot! From your information it's obvious that the Westagon 1.9/50 and the Westrocolor 1.9/50 are different designs indeed.
Very helpful!

S


PostPosted: Fri Jul 19, 2024 12:37 am    Post subject: Reply with quote
Agreed, very interesting information. Now I don't feel so bad about owning both versions Smile

As to whether they are the the same as the Schneider Kreuznach Xenon 50/1.9 it's difficult to tell with certainty.

Diagrams are available at:
https://photobutmore.de/exakta/schneider/
https://photobutmore.de/exakta/isco/

The page for Schneider Kreuznach shows two different diagrams for the Xenon F/1.9, they do look similar to that of the Isco lenses as well. One thing (some of) the Exakta versions of the F/1.9 lens have that the Isco version does not is a super cool PAD 18 blade aperture, somewhat of a record for an automatic aperture, partly made possible by the extra mechanical force able to be bought to bear by the use of the finger to activate the aperture. Even then, they often need servicing to restore correct function.


PostPosted: Sat Mar 08, 2025 4:45 pm    Post subject: Reply with quote
For the Isco experts, I've found an Isco westar 50mm 3.5 lens but there's no info about this one, except that is a rangefinder lens. I know it isn't a fast lens, but I'm just curious about it as there's no info I can find.


PostPosted: Sat Mar 08, 2025 5:23 pm    Post subject: ISCO Reply with quote
Ioseph Schneider 6 co produced some of their lenses in Göttingen using an abbreviation of their sompany name. After the war when wartime production there was forgiven, one of the optical experts from Jena escaped over the east/west border and designed the first ISCO wide angle with a long back focus, Later on the companies split and rejoined while making well regarded cinema projection lenses.

p.


PostPosted: Sat Mar 15, 2025 5:43 pm    Post subject: Reply with quote
So 4 lens of 3 designs from the Schneider Westagon, Westrocolor / Westromat, and Quinon, all quite similar but this I believe is the percieved order of optical goodness?


PostPosted: Sun Mar 16, 2025 1:56 am    Post subject: Reply with quote
kiddo wrote:
For the Isco experts, I've found an Isco westar 50mm 3.5 lens but there's no info about this one, except that is a rangefinder lens. I know it isn't a fast lens, but I'm just curious about it as there's no info I can find.


Probably the one for Diax rangefinder.

It is also a 45mm f/2.8 for Braun Paxette with m39 screw mount (different flange than ltm).


PostPosted: Sun Mar 16, 2025 7:41 pm    Post subject: Reply with quote
kiddo wrote:
For the Isco experts, I've found an Isco westar 50mm 3.5 lens but there's no info about this one, except that is a rangefinder lens. I know it isn't a fast lens, but I'm just curious about it as there's no info I can find.


Just the second link in my google search: https://www.flickr.com/photos/alf_sigaro/52254962622

Google translation: A simple 3-element triplet with front-lens focusing. It was first produced as an interchangeable lens for the Exa, mostly for export, and later also as a standard lens for 35mm viewfinder cameras such as the Akarette or Paxette.


PostPosted: Sun Mar 16, 2025 7:44 pm    Post subject: Reply with quote
Nordentro wrote:

Probably the one for Diax rangefinder.


Also possible: Click here to see on Ebay


PostPosted: Mon Mar 17, 2025 12:38 am    Post subject: Reply with quote
I realized I mixed Schneider and steinheil.
. Bit of embarrassment.
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