Bronica 250mm f5.6 MC (1976)
A medium-format manual focus telephoto prime lens introduced with the Bronica ETR system.
Overview
The Bronica 250mm f5.6 MC is a manual focus telephoto prime lens designed for the Bronica ETR series of 6x4.5 medium format SLR cameras. Introduced in 1976, it was part of the first generation of Zenzanon lenses produced by Zenza Bronica after the company began manufacturing its own optics under the Zenzanon brand. Marketed as a professional-grade lens, it features multi-coating (MC) to reduce flare and is optimized for subject isolation with a blurred background.
Specifications
| Focal Length | 250mm |
| Maximum Aperture | f5.6 |
| Lens designation/coating | MC |
| Filter Size | 62mm |
| Lens Mount | Bronica ETR |
| Closest focusing distance | 3.50m (lens-db.com); 3m (lens-db.com comparison table) |
| Weight | 820g (lens-db.com); 910g (lens-db.com comparison table) |
| Length | 148mm |
| Focus Type | Manual focus (only) |
Design
The lens features multi-coated optics (MC), with PE coatings designed to reduce internal flare. It was built as part of the initial Zenzanon lineup for the ETR system, marking Bronica’s transition to in-house lens production after previously relying on Nikon for optics.
Context
Introduced in 1976 alongside the Bronica ETR camera, this lens was developed after Nikon ceased manufacturing lenses for Bronica, prompting the company to create its own optical line under the Zenzanon name. It served as a dedicated telephoto option for professional medium format photographers using the 6x4.5 system.
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