37mm ND Filter for SX-70 Cameras

The Instant Optics Neutral Density (ND) filter allows you to shoot 600 Film in Polaroid SX-70 cameras. 

Shooting 600 films in an SX-70 camera allows you to use a wider and more easily available range of films.

SX-37 Adaptor required to mount lens to SX-70 camera.