Bronica 250mm f/5.6 MC Zenzanon-E for Bronica ETR Series Cameras *USED*

The Bronica 250mm f/5.6 MC Zenzanon-E is a dedicated telephoto prime lens designed for the Bronica ETR 6x4.5 medium format system. Offering a 35mm equivalent focal length of approximately 155mm, this lens provides a significant reach that is highly effective for compressing perspective in landscape photography or isolating subjects in portraiture. The "MC" designation indicates a multi-layered anti-reflection coating that is essential for maintaining high contrast and color saturation while effectively suppressing flare and ghosting. This lens is prized for its ability to deliver the large-negative detail and smooth tonal transitions characteristic of the 645 format, making it a powerful tool for photographers looking to expand beyond standard focal lengths.

Engineered with a 5-element, 5-group optical design, the Zenzanon-E 250mm is built for professional-grade sharpness and clarity across the frame. A critical feature of this lens is its integrated Seiko #0 electronic leaf shutter, which allows for full flash synchronization at all shutter speeds ranging from 8 seconds up to 1/500th of a second. This capability offers a distinct advantage over focal-plane shutter systems, providing photographers with greater creative freedom when using strobe lighting in bright daylight conditions. Despite its impressive focal length, the lens maintains a manageable footprint, weighing approximately 840 grams and utilizing a standard 62mm filter thread that is shared with several other lenses in the ETR system for easy accessory management.

For the medium format enthusiast, the 250mm f/5.6 MC offers a robust all-metal barrel construction that is designed to withstand the rigors of field work. It features a minimum focusing distance of approximately 3 meters, which, when combined with the shallow depth of field inherent to medium format at f/5.6, allows for beautiful background separation. The lens utilizes a fully automatic diaphragm that remains wide open for a bright viewfinder image and snaps down to the selected aperture only at the moment of exposure. This telephoto option remains a staple for ETR, ETRS, and ETRSi users who require a high-fidelity long lens that balances optical precision with the mechanical reliability of the Zenzanon-E series.