Bronica's medium format ETR system camera — 6x4.5cm format with interchangeable lenses and backs.
The Bronica ETRS is a medium format SLR camera system using the 6x4.5cm (645) film format. Part of Bronica's ETR system, it features interchangeable lenses, viewfinders, and film backs — a modular professional system that was popular with wedding and portrait photographers.
Uses 120 or 220 roll film in the 6x4.5cm format — producing images significantly larger than 35mm. Interchangeable Zenzanon lenses from wide-angle to telephoto. Focal plane shutter. Waist-level or prism viewfinder options. Mirror lock-up for vibration reduction.
Modular design — interchangeable lenses, viewfinders, film backs, and winding mechanisms. Zenzanon lens system with quality Nikkor-derived optics. Mechanical shutter. Flash sync via leaf shutter lenses or PC sync. Multiple film back options.
Available used at budget to mid-range prices. The 645 format provides a practical balance of medium format quality and handling convenience. Check mirror damper and film back light seals. The Pentax 645 and Mamiya 645 are competitors. A capable and affordable entry to medium format film photography.