Bronica 150mm f/4 Zenzanon MC Lens for ETR System Review

The Bronica 150mm f/4 Zenzanon MC is a classic medium-format telephoto lens designed for the ETR system, a modular 645 platform that remains popular among analog and hybrid shooters. At roughly 150mm, this lens delivers a moderate telephoto field of view on 645 film, making it well-suited for portraits, detail work, and landscape compression without excessive bulk. The f/4 maximum aperture is typical for medium-format glass of this era and delivers sharp, contrasty results when stopped down, though low-light performance is more limited than faster optics.

As a used lens typically found in excellent to bargain condition grades, image quality and mechanical feel will depend on the specific copy. The MC (multi-coated) designation indicates improved flare resistance and contrast compared to uncoated predecessors. Build quality is solid, in keeping with Bronica's reputation for robust construction. For creators shooting film or adapting medium-format lenses to digital, this is a straightforward, affordable telephoto option in the ETR ecosystem.