Nokton48
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- Joined
- Oct 8, 2006
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- 2,975
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- Multi Format

I've been working on shooting 70mm film again. Have decided best possible for now is the Graflex RH-50 70mm Film Back, I have two in house. One is now loaded with Kodak 2485 Recording Film (Uber high-speed low light emulsion) Type II perfed. Other RH-50 is loaded with fresh (bought frozen from B&H close-out) Kodak Tri-X Professional 70mm Unperfed. The RH-50 dosent care if it's perfed or unperfed (YAY) and takes standard Kodak 70mm film cartridges, so it's daylight reloadable (YAY). On my hack modded Paterson 70mm film reel I can load eighteen exposures, format is roughly 6x7cm so pretty nice to shoot. It was fun to work all this out. I prefer the Graflex 70mm back over the Beatty Coleman Transet 70mm back, at least for now. I also have a couple of tan Linhof Technika 70mm backs which I will investigate agian soon. The initial loaded test roll of eighteen exposure 2485 Recording Film will be tested at nominal EI 1600 (a total guess) and bracketed in full stops each way. I will process in straight Acufine 800ml in Paterson System 4 single reel tank. Acufine recommended by Bill Pierce decades ago for maximum highlight nuance and detail. This film can be rated up to EI 8000 we will see if developed in Kodak 857 Special Developer. Another plus is that the 70mm RH-50 is listed in the original Makiflex catalog, so somebody was using it

Shown is Auto Iris Plaubel Makiflex #2 body with Mamiya RB Stovepipe Hacked Viewfinder, and Auto Iris Schneider 150mm F2.8 Xenotar. Seems like a good lens for low light shooting with high speed film.
Special Thanks to Goran Basaric for talking me into buying a second RH-50 from him for a very reasonable price.


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