Ultimate Grafmatic 45 Guide

We show you how to load and shoot the fabled Grafmatic 45 back, for large format and Mercury Stereo cameras. We show you how to use 65mm and 70mm panoramic film as well as 4x5 film, how to non-linearly cycle to whichever frame you want, and more!
Chapters:
00:00 Introduction to the Grafmatic
01:57 Loading
06:35 Frame order
06:58 Using 65mm and 70mm film
10:24 Mixing multiple formats
11:53 Loading--finishing up
14:13 Stereo modification
15:51 Shooting
19:21 Skipping frames
21:42 On-camera demonstration

[@andyvan5692]

one other point you missed, there is also a crescent shaped darkslide lock, which allows you to remove the holder (using the darkslide ring, say on a lf camera with a spring back), so you don't operate the system, just remove it!! {the flat of the lock goes parallel to the slide for OFF, or free}.

[@mercurycamera]

Yes, I did forget to mention the darkslide lock. Thanks!

[@andyvan5692]

that x position is a double exposure safety, to stop you re-shooting film or septum 1, as in journalism, where this device was used (to enable off the cuff shooting with a grafflex slr camera), there was no safety features on LF cameras, everything is muscle memory, not just how to do things, but when {some people, like Mat Marrash(LFF TH-cam channel) call this 'the Dance', the series of actions to operate these LF cameras}; these mechanics help with this, esp. on the double exposure issue.

[@mercurycamera]

Yes, absolutely! It's easy to get overzealous with the Grafmatic, and the "X" position stops you and reminds you that you have cycled through all of the septums. "Do you really want to keep going?"