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Pages in category "Twin-lens reflex cameras" The following 6 pages are in this category, out of 6 total. This list may not reflect recent changes. ...
A twin-lens reflex camera (TLR) is a type of camera with two objective lenses of the same focal length. One of the lenses is the photographic objective or "taking lens" (the lens that takes the picture), while the other is used for the viewfinder system, [ 1 ] which is usually viewed from above at waist level.
L-Mount Alliance (Leica, Panasonic, Sigma, DJI and Blackmagic Design cameras) Contax RF 34.85 mm 35 mm: 44 mm: Double bayonet Photography Contax I, II, III, IIa, IIIa Kiev rangefinders: Contax G: 29.00 mm 35 mm: 44 mm Breech lock Photography Contax N: 48 mm 35 mm: 55 mm Bayonet Photography Contax/Yashica 45.5 mm 35 mm: 48 mm Bayonet Photography ...
Until recent years, focusing of a camera lens to achieve a sharp image on the film plane was achieved by means of a very shallow helical thread in the lens mount through which the lens could be rotated, moving it closer or further from the film plane. This arrangement, while simple to design and construct, has some limitations, not least the ...
It consisted of 40×40 mm square mounting plates with 25 or 30 mm holes at the center, and four 6 mm bores around the edges. If four 6 mm rods were secured on the corners, a second mounting plate could slide along the rods, and be secured at any point via set screws. By securing individual lenses within each mounting plate, a telescope could be ...
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