... If one has been careful to work in a non dusty but this is the basic rule regardless of the type of film to ask! The perforations corresponding to the camera lens and headset are positioned "at quarterback hair," the film is thin enough not to alter the sensitivity of the screen. Perfection? Without doubt, there was not 1 mm unprotected screen over the entire periphery of the film! Also note that shipping may seem excessive given the price of départ.mais in total, it is affordable and the quality / price ratio remains favorable ...