Scratch Test: Difference between revisions

Scratch Test (view source)

8 bytes removed , 12 May 2020

117

edits

@@ Line 28: / Line 28: @@
 ===Spot Check Method===
-Prepare ~50' of test film on a house reel. Run enough film through for the flywheel(s) to come up to speed and let run a few seconds longer. Stop the projector, and with a sharpie, carefully mark each point of contact with the film (sprocket, roller, gate, etc.). Carefully remove the film and inspect for scratches. If a scratch appears, take note of where in the film path it occurred and evaluate. Using this method the flywheel will inevitably scratch the film when the projector is stopped.
+Prepare ~50' of test film on a house reel. Run enough film through for the flywheel(s) to come up to speed and let run a few seconds longer. Stop the projector, carefully mark the film with a sharpie at each point of contact (sprocket, roller, gate, etc.). Carefully remove the film and inspect for scratches. If a scratch appears, take note of where in the film path it occurred and evaluate. Using this method the flywheel will inevitably scratch the film when the projector is stopped.
 ===Visual Evaluation of Film Path===