May Isen

5 hours ago, Gregory Irwin said:

It is an out of sync shutter. Phil is spot on. A good test to check your shutter timing is to take a strip of film (3 feet or so) and with a fine tip marker, draw a straight line across the film from perf to perf. Do this for several frames. Lace up the camera with the marked film in the gate and looking through the lens port, inch the movement frame by frame. Here you can now see if the lines you drew are either not moving while the shutter is open while inching, telling you the shutter is in time OR the lines are moving while the shutter is open thus out of time and giving you the unintended visual effects! It’s completely fixable by a trained technician. Good luck!

G

this is great. Thanks so much for the test instructions. And thanks to everyone else who responded.

Hi All,

What would cause 16mm footage to look like this (smeared highlights/vertical streaks)? This was shot on an Aaton LTR7. Footage before and after are okay - the streaks go on for about 2 min and then footage is okay again.

film stills below: