Lee 100x100mm (4x4”) Circular Polarizer lens mount_Mamiya NC The Sony FDA-A1AM is a

The Sony FDA-A1AM is a right-angle viewfinder for Sony Alpha DSLR cameras providing a rotating 90-degree viewfinder with switchable 1x/2x magnification for precision focusing or copystand use

Takes two LP-E6 style batteries (not included) and provides a handy vertical grip

Nikon made this S3 in the year 2000

The SMC Pentax-M 135mm f3

You may notice that there is a deep scuff across the front of this camera

Lee 100x100mm (4x4”) Circular Polarizer lens mount_Mamiya NC The Sony FDA-A1AM is aA good quality Lee polycarbonate circular polarizing filter for 100mm (4x4") filter holders. With padded case. Requires a filter holder, which is not included.