Bronica's telephoto for the S system — the 200mm f/4 for 6x6 medium format.
The Bronica 200mm f/4 Telephoto is a medium format telephoto prime from the Bronica S system, Zenza Bronica's original 6x6cm format camera range. The Bronica S used a unique bayonet mount accepting both Nikkor S-type and Bronica-branded medium format lenses.
The lens delivers 200mm at f/4 maximum aperture for the Bronica S 6x6cm medium format system, with the Bronica S bayonet coupling, manual focus, and manual aperture operation. Coverage is optimised for the 6x6cm negative format.
The Bronica S system represented a quality medium format alternative to the Hasselblad system of the same era. Its ability to use Nikkor-S lenses alongside Bronica's own optics was a significant advantage. The 200mm f/4 on a 6x6cm frame provides a longer telephoto perspective appropriate to the larger format.
Verify Bronica S mount coupling mechanism — the original Bronica S mount used a different coupling than later ETR/SQ systems. Inspect element condition for a medium format lens of this vintage. Test aperture and focus ring operation. Check for the Bronica S shutter cocking mechanism if the lens has a leaf shutter.