>>3209287Depends on your camera. Many film cameras have a double exposure function but how to use it depends a lot on the model. I use a Nikon F100 most of the time and it's digitally selected on that.
I DO actually manually reverse the film in in a darkroom and reload it into the canister, and then still shoot it upside down, for shots like
>>3209146 which is why half of it is in redscale. I use a Minolta with a broken shutter curtain for that. It only exposes half the frame, so I can get half of each on every frame. Provided I load the film absolutely perfectly, which I often dont.
Pic related.