Zenza Bronica EC
Zenza Bronica EC
Condition: Very good
Includes: 75mm 2.8 lens, 150mm 3.5 lens, 2× 120 backs.
Zenza Bronica EC — Technical Specifications
📸 General / Format
Camera Type: 6×6 cm medium-format SLR
Frame Size: 55.2 mm × 55.2 mm
Film Types: 120 or 220 roll film
12 exposures on 120
24 exposures on 220
Interchangeable film backs for mid-roll changes and different film stocks
🔧 Lens & Mount
Lens Mount: Interchangeable
Supports large bayonet, small bayonet, or 57 mm screw-mount lenses (depending on lens)
Focusing: Built-in removable helicoid focusing system
Wide-angle capability: Split-mirror design allows use of non-retrofocus wide-angle lenses
Telephoto: Longer lenses may require extension tubes for close-focus
🔍 Viewfinder & Focusing Screen
Interchangeable viewfinders (waist-level, prism, metered prism, etc.)
Interchangeable focusing screens
Two-piece split mirror:
Front half flips up
Rear half flips down
Reduces mirror clearance issues with wide lenses
⏱ Shutter & Exposure
Shutter Type: Electronically controlled vertical-travel focal-plane shutter
Shutter Speeds:
B, 4 s, 2 s, 1 s
1/2, 1/4, 1/8, 1/15
1/30, 1/60, 1/125
1/250, 1/500, 1/1000 (top speed)
Flash Sync Options:
X (1/60s)
M (1/15s)
F (1/30s)
FP for flash bulbs (sync up to 1/125–1/1000 depending on bulb type)
Depth-of-field preview button
Multiple exposure capability
🔋 Power & Operation
Battery: 1 × PX-28 / 4LR44 6V battery
Film Advance: Manual crank
Mirror Lock-Up: Built-in thanks to split-mirror design
📏 Size & Weight
Dimensions: 139 × 117 × 170 mm
Weight: ~1,980 g (about 4.4 lb)
📝 Additional Notes
Fully modular: finders, backs, screens, and lenses are all interchangeable
Known for excellent build quality and unique mirror system
One of the first electronically controlled medium-format SLRs
Compatible with Nikkor, Zenzanon, and some third-party lenses












