Gray filter film ND1.2 for flat field generators - Diameter 420 mm

Neutral density filter film ND 1.2 - extension factor 16x

In cameras with a slow shutter, the flatfield can be distorted if the exposure times are too short. Also with many CMOS cameras, the flatfield should not be exposed too short, otherwise distortions such as overcorrection can occur.

The ND 1.2 film is simply placed in front of the flatfield generator and attenuates the brightness by a factor of 16 without color deviation. You can therefore expose 16x longer. This reliably avoids effects such as a gradient through the shutter.

The film can be easily cut to the desired size with scissors.

Film