Nikon TC-200 brand_Sennheiser The Voss Diax Ia is

The Voss Diax Ia is a compact but not-especially-pocketable 35mm scale focus camera with a 45mm f2

whatever that is

This is the standard focusing screen for the Mamiya RB67 camera

The Lowepro Nova 4 is a mid-sized shoulder bag with room for a DSLR or a medium format system- and you could probably get a 4x5 field camera in there

Nikon TC-200 brand_Sennheiser The Voss Diax Ia isThe Nikon TC 200 is a manual focus teleconverter for Nikon F mount lenses. These have pretty good compatibility, mounting to many Nikon F lenses (though performance will vary). In very good condition, with minor paint wear. Optics are clean, function is good.