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The Grafik-Clarons are 6-element, 4-group, symmetrical plasmat-type lenses with a 64° angle of coverage, designed for 1:1 flat-field reproduction, but can be used as macro lenses at magnifications up to 5:1 as well. It is recommended to stop down to at least than f/22 for use at infinity.
Cambo lens board with Copal #1. A lens board or lensboard is a photographic part used for securing a lens to the front standard of a large format view camera. [1] The lens board itself is usually flat, square, and made of metal (most commonly aluminum), wood, or plastic. The lens board will have a hole of various diameters drilled dead center ...
The most common large format is 4×5 inches (10.2x12.7 cm), which was the size used by cameras like the Graflex Speed Graphic and Crown Graphic, among others. Less common formats include quarter-plate (3.25x4.25 inches (8.3x10.8 cm)), 5×7 inches (12.7x17.8 cm), and 8×10 inches (20×25 cm); the size of many old 1920s Kodak cameras (various versions of Kodak 1, 2, and 3 and Master View cameras ...
Large format lenses are photographic optics that provide an image circle large enough to cover the large format film or plates used in large format cameras.. Photographic optics generally project a circular image behind that is only required to have acceptable correction of aberrations over the intended film/sensor diagonal with little room to spare.
These lenses are 8 elements in 6 groups, and have an angle of view of 105°. 65mm 1:5.6 (for 4×5 in) 75mm 1:5.6; 90mm 1:5.6 (for 5×7 in) Fujinon SW is a 6-element, 6-group line, with an angle of view of 100°. 90mm 1:8.0 (for 4×5 in) 105mm 1:8.0 (for 5×7 in) 120mm 1:8.0; 125mm 1:8.0; Fujinon-W. 125mm 1:5.6; 135mm 1:5.6; 150mm 1:5.6; 150mm 1 ...
A view camera is a large-format camera in which the lens forms an inverted image on a ground-glass screen directly at the film plane. The image is viewed, composed, and focused, then the glass screen is replaced with the film to expose exactly the same image seen on the screen. [1]
As diffraction is based on aperture width in absolute terms rather than the f-stop ratio, lenses for very small formats common in compact cameras rarely go above f/11 (1/1.8") or f/8 (1/2.5"), while lenses for medium- and large-format provide f/64 or f/128. Very-large-aperture lenses designed to be useful in very low light conditions with ...
Super-Angulon, sold by Schneider Kreuznach for large format cameras [15] and licensed by Leica Camera as a 21 mm f /4 lens for Leica screw mount rangefinder cameras [16] and a later f /3.4 lens for both M rangefinder [17] [18] and R SLR mounts; [19] an unrelated Super-Angulon-R 21 mm f /4 was introduced a few years later, using a retrofocus ...
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