Looking for shutter angle data for 16mm cameras

[Mike Owens]

Greetings and happy new year. I’m trying to find out what the shutter angles are in several of my old 16mm cameras. It’s not as easy as I had anticipated. I own Bolex H16, H8, Keystone A-7, 9, 12 & 15, Revere 16/26, Kodak Cine E, Krasnogorsk K3, and a few other brands of older gear. I’m hoping to build myself a “cheat sheet” of sorts for exposure choices with different film stocks in these cameras - sticking with 24fps for consistency. Does anyone know a good resource for such information? The lack of information isn’t stopping me from filming, I just think it would assist me with calculating proper aperture settings in various lighting conditions. Thank you in advance for any assistance!

Edited January 5, 2023 by Mike Owens
Grammar

[Mark Dunn]

They are probably all within the 150-180° range, but the difference between those two is under a third of a stop, and you can't set the aperture more accurately than that.

If you're just curious, fine, but it isn't too relevant to exposure.

The K3 is 150° btw. You probably already know that the H16 reflex prism absorbs 1/3 stop.

 

Edited January 5, 2023 by Mark Dunn

[Simon Wyss]

• With the Paillard-Bolex H-16 it depends on the model; angles vary between the early 190 and 144 degrees (M);
• same with Paillard-Bolex H-8, whether early, Standard or Reflex;
• Keystone A-9 has 160 degrees;
• Revere 16/26 have 133 degrees;
• Ciné-Kodak E has 165 degrees.

[Joerg Polzfusz]

The shutter degrees for Bolex cameras are normally listed here:

http://www.bolexcollector.com/cameras.html

[Simon Wyss]

Michael Tisdale does great work but the data aren’t waterproof. Paillard & Cie already have given wrong numbers. The H-16 S for example has a 170-degrees shutter opening. The instructions to the H-16 Reflex speak of 17,526 mm flange focal distance, also besides the fact.