Pentax 6x7 MLU Polaroid/back door - PentaxForums.com
Pentax 67 Mirror Up Body with Polaroid Back – MrCad Online Store
Been prototyping an instax “back” for the pentax 67. Basically replaces the rear door. I gotta say, I love how sharp instax is, when using a proper lens. : r/instax
The beastly Pentax 6x7 with polaroid back. It works! | Flickr
Pentax 67 Mirror Up Body with Polaroid Back – MrCad Online Store
Polaroid Pentax 67 Forscher Proback - 100 back - Catawiki