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The Nikon SB-500 is a lightweight and very compact shoe-mount flash unit with coverage for a 24 mm lens on an FX camera or a 16 mm lens on DX camera and combined with 100 lux LED for video light, powered by only two AA-size batteries. SB-500 is a very capable flash with a variable angle 'bounce' head (up to 90°) and rotates 180° for soft ...
v. t. e. The speed of light in vacuum, commonly denoted c, is a universal physical constant that is exactly equal to 299,792,458 metres per second (approximately 300,000 kilometres per second; 186,000 miles per second; 671 million miles per hour).
The Nikon F3 was Nikon 's third professional single-lens reflex camera body, preceded by the F and F2. Introduced in March 1980, it had manual and semi-automatic exposure control whereby the camera would select the correct shutter speed (aperture priority automation). The Nikon F3 series cameras had the most model variations of any Nikon F camera.
Foucault's measurement confirmed le Verrier's estimate. [ 5]: 227–234 His 1862 figure for the speed of light (298000 km/s) was within 0.6% of the modern value. [ 14] As seen in Figure 3, the displaced image of the source (slit) is at an angle 2 θ from the source direction. [ 8]
Chromed FE2 with 50 mm F/1.4 lens. FE2 underside. The Nikon FE2 is a 35 mm single lens reflex (SLR) camera manufactured by Nippon Kogaku K. K. ( Nikon Corporation since 1988) in Japan from 1983 to 1987. The FE2 uses a Nikon-designed vertical-travel focal-plane shutter with a speed range of 8 to 1/4000th second, plus Bulb and flash X-sync of 1 ...
135 × 54 × 86 mm. Weight. 460 g (16 oz) Made in. Japan. The Nikon EM is a beginner's level, interchangeable lens, 35 mm film, single lens reflex (SLR) camera. It was manufactured by Nippon Kogaku K. K. (today Nikon Corporation) in Japan from 1979 to 1982 (available new from dealer stock until circa 1984).
The one-way speed. Unidirectional light path in the aberration of light. Although the average speed over a two-way path can be measured, the one-way speed in one direction or the other is undefined (and not simply unknown), unless one can define what is "the same time" in two different locations. To measure the time that the light has taken to ...
The Nikon F2 is an all-metal, mechanically-controlled (springs, gears, levers), manual focus SLR with manual exposure control. The camera itself needed no batteries, though the prism light meter did (and the motor drive if added). The F2 replaced the Nikon F, adding many new features (a faster 1/2000-second maximum shutter speed, a swing open ...
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