New Lenses for Bronica Cameras presented by Tamron at PMA '97
In a significant enhancement of the Bronica camera line, Tamron has added three innovative new lenses incorporating Tamron technology.
The new additions include the world's first medium format camera zoom lens to offer Internal Focusing, the first full-frame fish-eye lens in the Zenzanon P-series, and the first new lens for the Bronica GS-1 camera in 10 years.
For Bronica ETR-Si users, they now have at their disposal a lens that's unique in the medium format category. Developed by Tamron, the new PE100-220mm F/4.8 Aspherical (IF) zoom lens is the world's first medium format camera zoom lens to offer Internal Focusing. The lens also provides the outstanding optical performance of the renowned Zenzanon lenses while incorporating Tamron's state-of-the-art design technologies, such as the use of a Hybrid Aspheric element.
In addition to the Internal Focusing (IF) system, which allows focusing to occur without changing the overall length of the lens, the PE100-200mm features a new "Double-Speed Focus Cam" system developed by Tamron that widens the rotation angle of the focusing ring, making delicate focus adjustments easier. The new lens provides close-focusing with a 1.0 meter M.O.D. (Minimum Object Distance) throughout the zoom range and provides maximum magnification ratio of 1:4.9 at the 220mm setting.
The lens' compact size is also attributable to the use of Tamron's Triple-Cam Zoom and Integrated Focus Cam systems. These advanced technologies are used in this PE Zenzanon zoom lens to insure true zoom capability over the entire focal length range.
In other news for Bronica users, Tamron has introduced the first full-frame fish-eye lenses in the Zenzanon P-series for Bronica medium format cameras. The Zenzanon PE-30mm F/3.5 and PS-35mm F/3.5 full frame fish-eye lenses are for Bronica ETRSi (6x4.5) and SQ-Ai (6x6) medium format cameras. The lenses have a 108° diagonal angle of view and are capable of producing images with exaggerated special effects.
Both lenses have inherited the Zenzanon optical characteristics of high resolution and contrast. Flare and aberrations, especially problematical in fish-eye lenses, are suppressed through the use of an internal lens hood and the application of Tamron's exclusive BBAR (Broad-Band Anti-Reflection) multi-layer coating. The resulting images are high-contrast with sufficient corner illumination and enhanced light transmission for crisp color rendition.
Close-focusing for special effect photography with exaggerated perspective is realized with a minimum object distance of 10.6 inches (0.27 meters) for the PE-30mm lens and 11 inches (0.28 meters) for the PS-35mm lens.
Finally, underscoring its renewed commitment to the popular Bronica GS-1 camera system, Tamron recently introduced the first new lens for the GS-1 camera in 10 years. The new Zenzanon PG-80mm F/3.5 lens was made available this past Fall by Tamron.
This slightly wide-angle lens for the 6x7 format has a 35mm format equivalent focal length of 40mm, with a 58.6° field of view. Its compact size and modest weight allow the lens to be used comfortably in the field for all applications. The F/3.5 maximum aperture lens is as bright as the standard 100mm F/3.5, providing a bright viewfinder image for easy focusing. Like all PG lenses for the GS-1, the apertures are detailed with full and half-click stop detents, and the leaf shutter, a Seiko #0, provides shutter speeds from 1/500 second to T (time exposure), and B (bulb).
The GS-1 is arguably the most versatile SLR medium format camera produced, with the capability of shooting 6x7, 6x6 and 6x4.5cm, as well as Polaroid. Because of this, the new 80mm PG lens has other implications for this system. The GS-1 camera is used by a number of professionals with a 6x6 film back for candid work, as it obviates the need to turn the camera for vertical shots, and it provides an easy square print for a different look in a wedding album. Now, the GS-1 has a "normal" lens for this format, and a "nearly normal" one for 6x4.5cm, increasing an already versatile camera's utility.
TAMRON / BRONICA
www.tamron.com
