Birns & Sawyer Zoom Combifinder Model K lens mount_Pentax K This thing isn't in museum

This thing isn't in museum condition

this Micro-Nikkor is compatible with any F-mount camera that can control lens aperture (there's no physical aperture ring)

Note that this is the AI version

It's ideal for macro or telephoto shooting where making fine adjustments is important- and it's very nice for large format as well

The Bronica Zenzanon-RF 100mm f4

Birns & Sawyer Zoom Combifinder Model K lens mount_Pentax K This thing isn't in museumThe Birns & Sawyer Zoom Combifinder Model K is a director's viewfinder for standard 4: 3 format 16mm and Super 35mm. A handy accessory that lets you quickly get a feel for the field of view of lenses from 18mm 150mm (in Super 35 format) and 8mm 75mm (in 16mm format). Also very useful for looking like an important person who knows what they're doing, if you're in the right crowd. In excellent condition. Includes neckstrap.