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From 1839, the year, when the invention of photography was being published, came objective optics and from 1840 complete cameras for photography. The Voigtländer objectives were revolutionary because they were the first mathematically calculated precision objectives in the history of photography, developed by the Austro-Hungarian/Slovak mathematics professor Josef Maximilian Petzval, with ...
The Perkeo was 5 in × 3 + 1 ⁄ 2 in × 1 + 3 ⁄ 4 in (127 mm × 89 mm × 44 mm) when closed and was available in two models: the Perkeo I was equipped with a 75 or 80 mm f /4.5 Vaskar triplet, while the Perkeo II had the upgraded 80 mm f /3.5 Color-Skopar. [14] The rangefinder-equipped Perkeo E was introduced by 1954. [15]
Cosina started producing cameras and lenses under the Voigtländer brand in 1999, when it introduced a new M39 mount body and lenses. It has since produced a prodigious variety of these lenses in M39x26, Leica M mount, Nikon S rangefinder mount (some fully usable with Contax RF bodies), and SLR mounts including M42 and Nikon F.
Prominent refers to two distinct lines of rangefinder cameras made by Voigtländer.. The first Prominent, stylized in all-caps as PROMINENT and also known as the Prominent 6×9 to distinguish it from the later camera line, was a folding, fixed-lens rangefinder camera that used 120 film and was first marketed in 1932.
The Vitoret line includes manual-exposure viewfinder and rangefinder cameras [25] with a limited range of selectable shutter speeds (in some cases, 1 ⁄ 125, 1 ⁄ 60, or 1 ⁄ 30 sec + B; [26] later models added a 1 ⁄ 300 s setting) [27] and scale focusing marks. [26]
Announced in October, 2006 at photokina, the Bessa R4M and Bessa R4A were the first Leica M-mount cameras to include framelines wider than 28 mm. [citation needed] The R4-series keeps the same features as the R3-series, but utilizes a wide-angle-specific viewfinder with .52x magnification and framelines for 21, 25, 28, 35, and 50 mm lenses.
However, for the record: the first autofocus lens for a still camera was the Konishiroku Konica Hexanon 38mm f/2.8 [171] built into the Konica C35 AF (1977, Japan) 35mm point-and-shoot; the first autofocus lens for an SLR camera was the unnamed 116mm f/8 [172] built into the Polaroid SX-70 Sonar (1978, USA) instant film SLR; the first ...
In addition to the objective, the viewfinder consists of a 45-degree mirror (the reason for the word reflex in the name), a matte focusing screen at the top of the camera, and a pop-up hood surrounding it. The two objectives are connected, so that the focus shown on the focusing screen will be exactly the same as on the film.
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