Number your holders somehow. I use little label stickers that fit in the indentations on the top of the holders. I number consecutively, i.e., odd numbers are one side of the holders, evens are the opposite sides, but 1A, 1B, 2A, 2B... would work just as well.
Then keep an exposure log and use the numbers (that'll give you a reference). And, store your holders in ZipLoc-type bags and make sure the side of the holder you want to expose next is facing the clear, unlabeled part of the bag. And remember to flip your darkslides. And, and, and...
All of this will help to avoid mistakes. Really, there's no substitute for paying attention
Best,
Doremus
Most of us keep at least cursory notes on each exposure, such as lens, f/stop, development time that will be needed...
I keep mine on little post-it notes stuck to the dark slide, with the un-sticky side tucked under the top of the holder. Seeing that bright yellow note on the dark slide keeps me from ever double-exposing. The notes stay with the negatives until transcribed onto the negative sleeve. It works.
"I love my Verito lens, but I always have to sharpen everything in Photoshop..."
A Grafmatic will do that job for you. For a fact you would have to work hard to double expose a frame after cycling it.
My favorite holders for helping to prevent double exposures are some 5x7 glass plate holders, most with adapters for film. One side of the dark slides in 1" lettering says "EXPOSED". Hard to miss if one is careful to insert the slide correctly following exposure.
Carry a bit of tape roll with you. RED works well - masking tape. After the sheet is exposed put a piece of it on the darkslide. Should solve the problem. If you are really worried, put it over the top section so you won't pull up on it as well as down the face of the holder.
” Never attribute to inspiration that which can be adequately explained by delusion”.
Possible the "white edge of deception" found on newer film holder dark slides can cause confusion as to exposed/not exposed.
Some experience a degree of visual deception or confusion due to the mix of white edge and smaller black area causing the dark side to be put back into the film holder the same way it was removed.
Solution that might help is to blacken the white plastic edge with a black sharpie marker. This removes the confusing or deceiving visual cue of the mostly white plastic edge dark slide.
Side view of a blackened -vs- as delivered newer style plastic dark slide film holder.
Older metal edge dark slides are all black painted or bright aluminum which makes a stronger visual distinction than the white edged plastic dark slides.
Bernice
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