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In 1910 Arthur Roussel was hired to build a machine that would enable the public to view a film inside their home. Pathé Frères introduced a 28 mm film size for home use. 28 mm diacetate film was preferable for non-professional use because it was not flammable like 35 mm film with a nitrate base, and usage of the 28 mm film also gave Pathé Frères exclusivity, by way of patents. [2]
It was manufactured both for the Leica screwmount cameras and Leica M cameras. It was manufactured until the 1960s and over 100,000 units were produced, making it one of the most common Leica wide-angle lenses ever made. The lens was then discontinued in 1963 just before the first 28mm f/2.8 Elmarit became available for the M cameras. [1]
The smc Pentax-F 17–28mm Fish-eye f / 3.5–4.5 is the first fisheye zoom lens, manufactured by Pentax for single-lens reflex cameras (SLRs) with a K lens mount.At its widest setting of 17mm, it affords a 180° diagonal angle of view images for all K-mount full-frame SLR cameras; at 28mm, the diagonal angle of view is reduced to 90° on the diagonal.
They use the Micro Four Thirds system, so they all have a 17.3 x 13 mm Four Thirds size image sensor and autofocus. The first digital PEN was the E-P1 , released in June 2009. There are three lines in the Digital PEN series of Olympus: The main PEN range (E-P), the PEN Lite (E-PL) and the PEN Mini (E-PM).
Other early members of the Angénieux Retrofocus line included the 28mm f/3.5 Type R11 of 1953 and the 24mm f/3.5 Type R51 of 1957. [58] Retrofocus lenses are extremely asymmetric with their large front elements and therefore very difficult to correct for distortion by traditional means.
The EF 28mm lenses are a group of prime lenses made by Canon that share the same focal length. These lenses use the EF type mount that fits the Canon EOS line of cameras. When used on a camera body with an APS-C sensor, such as the Canon EOS 700D , it provides a narrower field of view, equivalent to a 45 mm lens mounted on a 35 mm frame body.
Size comparison between a Betamax cassette (top) and a VHS cassette (bottom) The heads on the drum [ 29 ] of a Betamax VCR move across the tape producing a writing speed of 6.9 or 5.832 metres per second [ 30 ] [ 31 ] with the drum rotating at 1800 rpm (NTSC, 60 Hz) or 1500 rpm (PAL, 50 Hz), [ 32 ] theoretically giving Betamax a higher ...
Eureka (stylized as EUR e KA) is an American science fiction television series that premiered on Sci-Fi Channel (renamed Syfy in 2009) on July 18, 2006. The fifth and final season ended on July 16, 2012.