Polaroid SX70 Lens Set (ND ,Closeup, fisheye filter) for Model 2 ,sonar Alpha 1,SLR690 SLR680 _ - AliExpress Mobile
Handmade ND Filter for SX-70 Cameras Use Polaroid 600 Film - Etsy
Handmade ND Filter for SX-70 Cameras Use Polaroid 600 Film - Etsy
SX-70 conversion filter for using 600 film
Amazon.com : Polaroid Optics 40.5mm 3-Piece Filter Kit Set [UV,CPL, Neutral Density] includes Nylon Carry Case – Compatible w/ All Popular Camera Lens Models. : Electronics