Bronica rf645 shutter release
Yoshino's ambition, however, would require substantial investment, which he gradually self-funded from his family business in transportation and his passion for cameras by the establishment of a small camera store in Tokyo's Kanda district. Both fascinated and yet increasingly frustrated by the limitations of the cameras produced at that time period, where each camera's merits and demerits were not solved by just one camera, Yoshino visioned creating a high-precision interchangeable single-lens reflex camera modular system of his own design. At an early age Yoshino showed deep reverence for the technical innovation and mechanics of world-renowned cameras produced by the likes of Leica, Contax and Rollei. 23 November 1988), wherefrom the Latinized Zenza Bronica brand name is derived, was the third son born into a Japanese rice merchant family. The company's founder Zenzaburō Yoshino (in Japanese: 吉野善三郎, b.
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In addition, lens hoods can offer some degree of physical protection for the lens due to the hood extending farther than the lens itself.Before introduction of the first of what would become a dynasty of Zenza Bronica cameras in 1959, the Latinized Zenza Bronica name was already a popular Japanese luxury goods brand of the Shinkodo Works (in Japanese: 新光堂製作所) since 1947, specialized in the production of intricate crafted and decorated personal accessories, such as metal cigarette lighters and cases, cosmetic compacts, and watches, of diverse styles and designs. Lens hoods are often designed to fit onto the matching lens facing either forward, for normal use, or backwards, so that the hood may be stored with the lens without occupying much additional space.
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For wide angle lenses, the length of the hood cannot be as long as those for telephoto lenses, as a longer hood would enter the wider field of view of the lens. Lens hoods are more prominent in long focus lenses because they have a smaller viewing angle than that of wide-angle lenses. This allows the lens hood to block stray light with the higher portions of the lens hood, while allowing more light into the corners of the image through the lowered portions of the hood. The geometry of the lens hood can vary from a plain cylindrical or conical section to a more complex shape, sometimes called a petal, tulip, or flower hood. This stray light often comes from very bright light sources, such as the sun, bright studio lights, or a bright white background. Flare occurs when stray light strikes the front element of a lens and then bounces around within the lens. Based on a symmetrical optical configuration, the power balance between the front and rear groups is ideally distributed, contributing to making the overall dimensions of the lens smaller.Ī lens hood or lens shade is a device used on the end of a lens to block the sun or other light source in order to prevent glare and lens flare.
Bronica rf645 shutter release series#
The optical system is derived from the popular Gauss type, widely incorporated in the Zenzanon P Series lenses. Compactness, ease of handling and high fidelity image depiction combined with excellent color rendition characterize this lens. The telephoto 135mm conversion) with a 29.1-degree angle of view.
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The 45mm lens features as standard an Albada type external viewfinder, which renders precise framing over a wide field of view. Aberrations are thoroughly corrected, resulting in superb optical performance. The three lenses designed for this camera are the wideangle 45mm F4 (equivalent to 28mm in 35mm format), the standard 65mm F4 (40mm equivalent), and the telephoto 135mm F4.5 (80mm equivalent).Īimed at producing the best possible image quality, our engineers selected the ideal optical composition for each lens. (Kazuyasu Noguchi, President) announces the RF645, a new medium format 6x4.5 coupled rangefinder camera with interchangeable lenses, released under the Bronica brand. September 20, 2000, Photokina Cologne, Germany - Tamron Co., Ltd. Tamron Announces The New Bronica RF645 6x4.5 Format Coupled Rangefinder Camera With Interchangeable Lenses
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*) Sources of data: Manufacturer's technical data