Bronica's portrait lens for the ETR 645 system — a medium format telephoto with multi-coating.
The Bronica ETR 150mm f/3.5 MC is a portrait-length telephoto lens for the Bronica ETR 645 medium format system. On the 645 format, 150mm provides approximately a 93mm equivalent perspective — an ideal portrait focal length. The MC designation indicates multi-coating for improved contrast and flare resistance. Bronica's ETR system was popular for wedding and portrait photography.
Optical performance is good for the system. Sharpness is very good when stopped down, delivering the tonal depth and resolution that medium format 645 is known for. The f/3.5 aperture provides meaningful depth of field separation on the larger format. Bokeh is smooth and flattering for portraits. Multi-coating helps maintain contrast in challenging lighting conditions.
Bronica ETR mount with leaf shutter — enabling flash synchronisation at all speeds, critical for studio portrait work with flash. Filter thread is 62mm. Weight is approximately 520 grams. Build quality is solid professional grade. Manual focus with a smooth, precise helicoid. The leaf shutter is integrated into the lens, a key advantage of the ETR system.
Available on the used market at reasonable prices — Bronica equipment is generally more affordable than Hasselblad equivalents. Check leaf shutter operation across all speeds and clean optics. A capable portrait lens for the ETR system. The 645 format provides a sweet spot between 35mm and 6x6 medium format for portrait and wedding work.