SLR abbreviation for Single-Lens Reflex the lens that forms the image on the film also provides the image in the viewfinder via a mirror.
#Leica camera serial number manual#
M3 - MP - M2 - M1 - MD - MDA - M4 - M5 - CL - MD-2 - M4-2 - M4-P - M6 - M6 TTL - M7 - MP - M8.Ĭameras that has been prepared to be fitted with a motor winder to forward the film.įor example the Leicaflex SL for manual winding and the Leicaflex SL MOT that is likewise born with manual winding, but can be fitte with a motor winder.Ī camera where the photographer is using a viewfinder to view and focus (measuring the distance) with a camera where one is not looking through an actual lens when framing and focusing. There are technically not three "s", rather the "ß" and one "s" because it is a word constructed by the combining of two precise words. It is always correctly written with the "ß". Later the numbers of the M cameras were more or less chosen to follow each other. The "3" in M3 was chosen because of the three bright line finders for the 50, 90 and 135 mm lenses. … stands for "Messucher", which is German for "Viewfinder".
Companies developing 4:3 cameras and/or lenses are Fuji, Kodak, Leica, Olympus, Panasonic, Sanyo, Sigma.
The system provides a standard which, with digital cameras and lenses available from multiple manufacturers, allows for the interchange of lenses and bodies from different manufacturers. The Four Thirds System is a standard created by Olympus and Kodak for digital SLR camera design and development. ORIGIN early 20th cent.: from f (denoting the focal length) and number The ratio of the focal length of a camera lens to the diameter of the aperture being used for a particular shot. The lens was a f/3.5 50mm and was known as the Leitz Anstigmat and later the Elmax. Max Berak was employed at Leica in 1912 and was the architech of the first Leica lens which Ernst Leitz asked him to design for the "Barnack's camera" (the 1913-prototype named after Oscar Barnack who invented it). Ernst Leitz was the founder of Ernst Leitz Optical Industry which later became Leica. Leica I Compur camera (1926-1941) and Leica Summicron (II) Compur 50mm f2.0 lens (1959).Įlmax = E. 100 M7 Betriebsk cameras was produced, intended for Leica dealers to have as demonstration cameras.Ĭurently no origin known. 25-50 Leica MP Betriebsk cameras was produced in 1957. Practically, the lens performs "better" (up to interpretation) due to increased correction of the image, in a package not significantly bigger than the spherical version.Ī designation engraved (or silk printed) on top of Leica cameras produced for internal factory use only. This design allows the manufacturer to introduce corrections into compact lens designs that weren't possible before. These elements can be made by 1) expensive manual grinding, 2) molded plastic, 3) Leica's patented "press" process, where the element is pressed into an aspherical ("non-spherical") shape. ASPH lenses, however, involve usually 1 element that does *not* have a constant radius of curvature. This design however restricts the number of optical corrections that can be made to the design to render the most realistic image possible. These are easy to manufacture by grinding while "spinning" the glass. Most lenses have a spherical design - that is, the radius of curvature is constant. ORIGIN mid 19th cent.: from a- + Greek stigma 'point' + -ism. ORIGIN late 19th cent.: from an- 1 + astigmatic (see astigmatism) :Īstigmatism a defect in the eye or in a lens caused by a deviation from spherical curvature, which results in distorted images, as light rays are prevented from meeting at a common focus. Produced again as a retro camera in 2000-2002).Īnastigmatic (of a lens system) constructed so that the astigmatism of each element is canceled out. If you are looking for the Leica Compendium (2012 print edition and 2014 digital edition) by Erwin Puts, please wisit his website for more info, or try search eBay for his books (usually sold out from the publisher rather fast, so they become collectors items).Ĭourtesy o f Oxford American and See my more complete list of definitions at my article Leica DefinitionsĪnastigmat an anastigmatic lens system ( Leitz Anastigmat (Leitz I) from 1920 with a fixed 50mm f3.5 lens. From Ur-Leica to Leica R8 and M7 illustrated.