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Aligning multiple exposures

fabulousrice

Member
Allowing Ads
Joined
Mar 19, 2020
Messages
450
Location
Los Angeles
Format
35mm
I'm mostly using a Minolta X300 for multi-exposures.
My process is as follows:

-I make sure the camera's crank is winded;
-I insert the film into the cylinder making sure the cylinder doesn't move, and make a pen marking of how deep into the cylinder the film is pushed;
-I feel with my thumb where camera's gate is and push to make a marking on each side with my nail or a marker;
-At the end of the first pass and exposing all the photos, I rewind almost completely and repeat through step one.

This process has brought 90% chance of success, but sometimes for a reason I don't understand, there are 3-4 millimeters of the photos that do not perfectly overlap.

What can I do to better align the exposures of each pass?