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While you don’t always need special gadgets to watch celestial events light up the sky, telescopes and binoculars allow you to get a better look at space-related phenomena. The summer is filled ...
A Vivitar digital camera. The company's product line has included 35 mm SLR cameras, zoom lenses, flashes, film enlargers, binoculars, digital cameras, night vision products, point-and-shoot cameras, tripods, underwater cameras, smart home technology, health and wellness accessories, and other audio/video equipment.
The desirable amount of magnification depends upon the intended application, and in most binoculars is a permanent, non-adjustable feature of the device (zoom binoculars are the exception). Hand-held binoculars typically have magnifications ranging from 7× to 10×, so they will be less susceptible to the effects of shaking hands. [ 25 ]
SWAROVSKI OPTIK, headquartered in Absam, Tyrol, Austria is part of the Swarovski group of companies. Founded in 1949, the Austrian company specialises in the development and manufacturing of long-range optical instruments in the premium segment of the market, including binoculars, telescopes (spotting scopes), rifle scopes, range finders and night sight devices.
Zoom and superzoom lenses are commonly used with still, video, motion picture cameras, projectors, some binoculars, microscopes, telescopes, telescopic sights, and other optical instruments. In addition, the afocal part of a zoom lens can be used as a telescope of variable magnification to make an adjustable beam expander .