Who doesn't have a 35mm back for Belair? Maybe you can try this tipster.
Some tools you need to prepare:
1. Black tape
Follow these steps:
1. You need to cut sponge sufficiently. At the top give more sponge than at the bottom.
2. At the right side of camera, you have to tape 35mm film to the empty cartridge 120mm so the film can roll smoothly ( as you can see in the picture).
3. Back side of the Belair camera, you have to tape with black tape. If not, you will get light leaks.
4. Now, we are ready to take a picture. To get the exact space for next photo, you just need to turn it 5×.
Here’s the images.
good luck “selamat mencoba”