Bronica SQ telephoto for 6x6 medium format with f/4 aperture and leaf shutter.
The Bronica Zenzanon-PS 135mm f/4 is a telephoto lens for the Bronica SQ 6x6cm medium format system, providing approximately a 75mm equivalent perspective on the square format. The PS designation indicates compatibility with the SQ system. Built-in leaf shutter provides flash sync at all speeds.
Optical quality is good with the Zenzanon multi-coating delivering sharp, contrasty images. The 135mm on 6x6 provides a moderate telephoto that suits portraits and landscape details. The generous square negative format ensures exceptional detail and tonal quality from every frame.
Build quality is solid professional Bronica construction with the SQ bayonet mount. The lens handles well on SQ bodies and provides the reliable mechanical quality the system demands. The leaf shutter operates smoothly and quietly for studio and location work.
On the used market, the Zenzanon-PS 135mm f/4 offers affordable telephoto capability for Bronica SQ users. For SQ system photographers wanting moderate telephoto reach on the 6x6 format, it provides solid performance at very modest prices.