ARRI ARRIFLEX 416 - Manual (Page 219)

1 1
Problem Cause Remedy
Scratches on the emulsion side of the negative
In the image area,
Dirty or damaged cross bars Clean or, if defective, replace the film gate
over several frames on the film gate
In the image area, Upper or lower film loop too long, Check the loop length of the magazine
short and periodically recurring film touches inside of magazine throat
(above and below)
Outside the image area
Dirty or damaged longitudinal bars Carefully clean film gate and magazine throat
on the film gate or,
or film running surfaces in the magazine throat if defective, replace
Scratches on the glossy side of the negative
In the image area
Dirty or damaged film track Clean film track and pressure plate
or pressure plate or, if defective, replace
Outside the image area
Dirty or damaged longitudinal bars Carefully clean longitudinal bars and magazine throat
on the film track or,
or film running surfaces in the magazine throat if defective, replace
Scratching in general
Strong tendency of raw film stock to build up Notify the manufacturer of the film stock,
emulsion, dust on raw stock from perforation use different film stock
process, extreme temperatures,
scratched raw stock
Appendix