The Phase One View mask for Mamiya RZ67 is an acetate insert for the Mamiya RZ67 Pro series viewfinder to allow for the accurate framing of an image based on the size of the sensor of the digital back being used.

This unit is appropriate for Phase One digital backs - IQ3 50MP, IQ250, IQ150, IQ140, P40+, P30+, P21+, P30, P21.