Bronica's ultra-wide for ETR system — 40mm f/4 MC providing wide-angle on 645 medium format.
The Bronica ETR 40mm f/4 MC is an ultra-wide prime for the Bronica ETR 645 medium format system. At 40mm on 6x4.5cm film, it provides approximately 25mm equivalent — a dramatic ultra-wide perspective on medium format.
Optically good — multi-coated (MC) for improved contrast and flare control. Sharp from f/8 with the ultra-wide coverage expected for this focal length. Manual focus. The 25mm equivalent perspective on 645 provides dramatic environmental and architectural images.
Bronica ETR mount. Multi-coated optics. Manual focus and aperture. Medium format coverage for 6x4.5cm. Metal construction. Filter thread varies by version — typically 72mm or uses adapter.
Available used at budget to mid-range prices. The Bronica ETR system is discontinued but lenses remain functional. Check for smooth focus and aperture operation. An affordable way to shoot ultra-wide on medium format film. Pair with the ETRS or ETRSi body.