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David Tomlinson
RCCCUK

United Kingdom
208 Posts
Posted - Apr 05 2014 :  02:12:06 AM  Show Profile  Reply with Quote
According to J L Princelle, when the Zenit-E was first produced it did not have an instant return mirror. I have two early Zenit-E cameras, but both have instant return mirrors. Has anyone seen a Zenit-E without an instant return mirror, and if so what is the serial number?

David.
levonsa
levonsa
Russia
248 Posts
Posted - Apr 05 2014 :  2:31:19 PM  Show Profile  Reply with Quote
Good evening David!
I have a number of very early Zenit-E #65000062.
http://www.ussrcameras.ru/?rp=1&action=tovar&tovar_category=141&id=356
This camera have instant return mirror.
Maybe J L Prinselle knows even earlier versions?
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David Tomlinson
RCCCUK
United Kingdom
208 Posts
Posted - Apr 06 2014 :  02:23:14 AM  Show Profile  Reply with Quote
Thank you very much for your reply. As your camera is number 62, I think we can be pretty sure that all production Zenit-E cameras did have an instant return mirror.

David.
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daniel
Spain
6 Posts
My Collection

Posted - Apr 07 2014 :  05:05:27 AM  Show Profile  Visit daniel's Homepage  Reply with Quote
The book in German by Alexander Schulz (http://www.g-st.ch/privat/kameras/zenitbuch.html) also quotes this information by Princelle, but admits that there isn't any Zenit E known without instant return mirror.

Off-topic: Is it correct to write "there isnīt any Zenit E known" or should I have said "there is any Zenit E known"?

Edited by - daniel on Apr 07 2014 05:58:49 AM
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Milo Schekkerman
Valkir1987
Netherlands
188 Posts
Posted - May 09 2014 :  2:58:09 PM  Show Profile  Click to see Valkir1987's MSN Messenger address  Reply with Quote
quote:
Off-topic: Is it correct to write "there isnīt any Zenit E known" or should I have said "there is any Zenit E known"?


Both sentences seem to be correct, though the last question is better. If someone asks me "don't you want some coffee?" and the answer is yes... I would not get my coffee if the sentence was taken literally.

I don't know how common it is in other languages to ask denying questions, but they might be confusing.

On Topic: I don't think a Zenit E without instant return mirror existed. The new model was designed to have one. Early models are sometimes found with the old Leica tread mount.
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Guido Studer
Guido
Switzerland
359 Posts
My Collection

Posted - May 09 2014 :  3:43:16 PM  Show Profile  Visit Guido's Homepage  Reply with Quote

Hello Milo

Well, in german the double negation is an affirmation, BTW. But that's not the point.

Early Zenit E and B don't use the M42/1mm mount, but a M39/1mm mount, that's true. But the flange distance (distance between lens mount and film/sensor) was the same as on M42, will say 45.46mm (and not 28.8mm like on M39/LTM). Small adaptor rings from 39 to 42mm where used to adapt early Helios-44 lenses to later Zenit E/B. I own some of this stuff but only one Zenit E with M39 mount; there are quite rare and most of the sellers don't even know about this.

Best wishes - Guido
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Alex_Rus
Russia
30 Posts
Posted - May 10 2014 :  1:42:50 PM  Show Profile  Reply with Quote
Early Zenit E and B have M39 mount and the flange distance 45,2mm
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Guido Studer
Guido
Switzerland
359 Posts
My Collection

Posted - May 10 2014 :  2:21:24 PM  Show Profile  Visit Guido's Homepage  Reply with Quote

Hello Alex

My sources say 45.5mm or 45.46mm (add film thickness and you will get 45.50mm):

http://www.graphics.cornell.edu/~westin/misc/mounts-alphabetical.html
http://en.wikipedia.org/wiki/Flange_focal_distance

And in the first list you will even find a entry for the Zenit 3M (with the same mount as early Zenit E/B).

Do you have better sources?

Best wishes - Guido





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Luiz Paracampo
Luiz Paracampo
Brazil
1865 Posts
My Collection

Posted - May 10 2014 :  6:42:27 PM  Show Profile  Visit Luiz Paracampo's Homepage  Reply with Quote
Guido
Alex is right according to original KMZ data, although difference is too little to be noted is most cases.
Regards
LP
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Zoom
596 Posts
Posted - May 22 2014 :  05:47:05 AM  Show Profile  Reply with Quote
quote:
Originally posted by Guido Studer


Do you have better sources?


I have! GOST 10332-72 and GOST 10332-63
http://www.zenitcamera.com/qa/qa-gost10332-72.html
http://www.zenitcamera.com/qa/qa-gost10332-63.html

P.S. If anyone thinks that 45.5 mm is only in a Russian standard, please refer for example to:
http://www.zenitcamera.com/archive/lenses/flektogon-2-8-35-adb-lk.tif

P.P.S. About a history of "45.46 mm" see
http://www.zenitcamera.com/archive/history/mounts.html#n1

Edited by - Zoom on May 22 2014 06:09:17 AM
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