0,9mm advantage: High magnetic force, even with smaller dimensions: My magnets have an area of about 7cm x 8.5cm. This is the size you have any problem held 4-5 DIN A4 sheets. Larger areas would then mean more holding power.
0.9mm disadvantage: The film is and therefore a little more difficult to process significantly more stubborn in relation to 0.5mm film. However, not so difficult that I would give it prints. It is of course more expensive. So if you are not the higher magnetic force needed because the magnets such as: should only themselves to keep an area 0.5mm film just fine.
Bottom line: If I have exhausted my film, I will fall back there again on these films. I can highly recommend it.
