How 35mm Film is Projected

In my rush to make this video between classes, I forgot to do framing when threading! When you place the film into the gate, make sure the frame is in frame in regards to the aperture plate. If you fail to do this (like I did) you will need to adjust framing when the film starts, and the audience will not like that!

I really miss threading films. I used to be a theater manager for Showcase theaters, and they sent me to school to learn how to use the projectors, splice films and build prints. I had so much fun! This was a lot of fun to see. I can't believe I remembered, as you were going, what the next steps were!

Thanks for making this beginner video on threading a projector! I am just getting into 35/16 collecting and so happy to see new content on YouTube since there isn’t a whole lot on here. Keep up the good work! I would love to see a extensive overview of splicing and using perf tape! But, I am sure anything is good too! Thanks!

I was a projectionist right at the end of film distribution. Miss that job all the time, it was a great feeling.

Nice to see. I ran these for a few years. I had a lot of work on them to get them stable and have the shutter timing good. Most of the pertinax wheels inside were worn out. You can see on your film the effect of the electro magnetical field from the rectifier when you start your xenon. Nice done.

I was a projectionist in the late 60's and into the seventies and just before the multiscreen theatres became common. Loved the job. I liked the Super Simplex and Simplex XL and threading a projector was super simple back then. We also mostly used carbon arc lamp houses which also doubled as dinner heaters.

Thanks for your video! The DP70 was my first contact with a 35mm cinema projector when I was 12 years old. :-)

That Was Amazing How You Explained That, Your A True Professional.

Thanks for the video!

This is very interesting, as I always wondered what the set up looked like and how it ran. Thanks for the upload.

As it seems to be six whole months ago when you released "How to Run a Projection Booth: The Basics" I am guessing that LNL is open / or they let you in the booth again. Dim wit here, of course, no audience! Nice to have you back!

At 2:05 you indicate the film turns counterclockwise at the top and clockwise at the bottom. This was standard in the US, but in Europe, both turned clockwise. This is because the US standard used an "S" form in rewinding, with counter-rotation reels, while Europeans used a direct over or direct under configuration, with both reels in the same direction. The reason this matters, is that the US "tradition" is in direct contradiction with the SMPTE Recommended Practice for "Emulsion-In" film handling, wherein films are stored on reels with the emulsion facing inward, toward the center of the reel, to avoid the stretching forces of facing the emulsion outward, causing crackling and other mechanical breakdown of the emulsion layer. The US set the standard, but neglected it, while the rest of the world followed it.

Nice demo. Thanks for this video.

Best ever made was the Simplex carbon-arc machine. But I'm prejudiced as my grand-dad, and dad, and I ran them. Age 84 here.

Very intresting video, well presented, please keep up the good work.

Very. best projector. all parts good. Working. good information ,, thanks,,

Great video ❤

Nice demonstration

I would add that it is good practice to close the lamp house douser before hitting stop, even though it seems your system's "stop" is wired to the changeover shutter? I couldn't tell if it killed the lamp too. But with lots of setups all that is separate, and just stopping your motor does NOT kill the light through the aperture. That is one easy way to burn a frame. Douser first is a more system-agnostic muscle memory to develop.

You should consider adjusting your lenses so you don't have to refocus between flat & scope. Your mention that the manual advance knob can sheer off is spot on. I always used the motor flywheel to advance the film.