Wideangle Zoom Lens fits Bronica SQ 6x6 cameras.

Press Release Summary:

ZENZANON PS50-100mm F/4-5.6 zoom lens fits Bronica 6 X 6 format. It covers range of 27.5 to 55 mm, frequently used in landscape and event photography. Lens is built to endure professional use. Shell mechanism for front frame does not rotate same way two group zooming system usually rotates. This allows use of flower-shaped hood and PL Filter. Large flower shaped hood provides maximum shading effect at all focal lengths.

Original Press Release:

New Zenzanon PS50-100MM Wideangle Zoom Lens For Bronica SQ (6X6) Cameras

Widely Anticipated Zoom Successor of the Popular Zoom Lenses Released for the Bronica ETR Camera Systems

PMA, Orlando, FL, 2002: Tamron USA, Inc. announced the release of the much-anticipated zoom lens for the Bronica SQ-Ai (6x6) camera system. The ZENZANON PS50-100mm F/4-5.6 is the first zoom lens developed for the Bronica 6 X 6 Format. Tamron went to work on developing this lens after the success of two zoom lenses for the Bronica ETR-Si (6 x 4.5 Format) that were introduced several years ago. The ZENZANON PS50-100mm covers a wide range (27.5mm - 55mm corresponding 35mm SLR focal length) frequently used in landscape and event photography.

While the PS50-100mm is designed for the 6 x 6 format, the engineers developed the lens with the size of the 6 x 4.5 zoom lens in mind. Usually, lens size will be directly proportional to film size; however, this PS50-100mm lens was successfully downsized to almost the same size as the 45-90mm for the 6x4.5 format by devising a new mechanism. This new zoom lens will become a versatile standard lens for the Bronica 6x6 format system due to its compact size and focal range.

Image quality is improved from center to side; distortion is thoroughly compensated for throughout the zoom range and relative illumination is increased by the use of 2 large-size hybrid aspherical lenses. The lens is ruggedly built to endure professional use. For convenience, the engineers adapted a shell mechanism for the front frame so that it does not rotate the way a 2 group zooming system usually rotates. This allows the use of our Flower-shaped hood (included) and PL Filter frequently used in landscape photography. The large flower shaped hood provides the maximum shading effect at all focal lengths.

The PS50-100mm F/4.5 is scheduled for April delivery.


Focal Length:50-100mm
Optical Construction:12 elements / 10 groups (2 Hybrid Aspherical Lenses)
MOD:1.5m at all range
Weight:1010 g
Filter Size:95mm
Hood:Bayonet Flower-Shaped Hood (included)
Compatible Model:BRONICA SQ-Ai, SQ, SQ-A, SQ-Am, SQ-Basic

More from Fluid & Gas Flow Equipment

All Topics