As mentioned earlier, one of the tell tale sign of a “Canon 7s”.

by John Waco Jr August. 23, 2020 77 views

As mentioned earlier, one of the tell tale sign of a 7sz is the larger rewind knob but some regular 7s had this as well. Another more subtle key difference is the position of the vertical RF adjustment screw. On the 7sz it is over the second “n” in “Canon 7s” on the top left (rather than top right next to the shutter speed dial) of the camera, since the improved mechanics on the 7sZ uses a cylindrical rotary prism between the RF mirror and the camera chassis.

The horizontal RF calibration is the same as the Canon P and is located on the front of the camera between the viewfinder and the frameline window. Good to know as the rangefinders are sensitive to knocks and it’s nice that you can adjust it without opening the camera up. Experts have said the rangefinder on them are even more complex than that of Leica Ms.

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Jay Boggess 2 months, 1 week ago

Kool images & great variety,  as always. 
Your knowledge of vintage photographic instruments never ceases to amaze! 
Always a pleasure, my friend!
+1grinning+1

2 months, 1 week ago Edited
John Waco Jr Replied to Jay Boggess 2 months, 1 week ago

I have been in the business for so and have saved ever magazine and publication from the late 1950's and plus the articles I have written over the last 50 years.

2 months, 1 week ago Edited
Jay Boggess Replied to John Waco Jr 2 months, 1 week ago

We are fortunate you have chosen to share your considerable knowledge & fine images, here on PB!
I'll bet the Library of Congress would like get your collections, once you pass!smile

2 months, 1 week ago Edited
John Waco Jr Replied to Jay Boggess 2 months, 1 week ago

I am sure they would, but my collections will be going to Smithsonian's Collection..+1

2 months, 1 week ago Edited
Jay Boggess Replied to John Waco Jr 2 months, 1 week ago

I agree! That would be the proper place for it!
Cheers!+1grinning+1

2 months, 1 week ago Edited
John Waco Jr Replied to Jay Boggess 2 months ago

At the moment I have two students from ucla selecting  my images to go into there collection.. Hopefully by 2004 you will be able to see some of my work in there collection.

2 months ago Edited
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