Binoculars


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Binoculars 

A set of two identical telescopes, one for each eye, which gives binocular vision of magnified distant objects. The images are erected using either an eyepiece of negative power, or prisms, or very occasionally, an additional lens system placed between objective and eyepiece. On binoculars, the magnification M and the diameter D of the objective or entrance pupil are shown as MD (e.g. 8 ✕ 30). Syn. field glasses; prism binoculars (for those which use prisms as erectors). See erector; galilean telescope; terrestrial telescope.
References in periodicals archive ?
Binoculars are perfectly suited for this type of observing, but Randy soon noticed how tired his arms would get.
RABIN Brig Gen," an indication that the seventh chief of staff of the IDF had the binoculars at least from his time as a brigadier general.
I've had a couple of binoculars that worked fine--as long as they worked.
Binoculars are quite often a better instrument to use when you're just starting out.
Steiner has a long-standing reputation for producing exceptional binoculars and we're confident the P750 will provide sharp, crisp images that will keep our officers safe and allow them to perform their jobs to the best of their ability.
Binoculars are such marvelous instruments for stargazing that no observer, beginner or advanced, should be without them
During daylight hours things look just as bright through binoculars and scopes with 4mm exit pupils as through those with 7mm exit pupils.
This past spring in Uganda, Leupold's new BX-4 McKinley HD binoculars worked magic while searching the swamps for east African sitatunga.
Police have released CCTV footage of a man police would like to speak to after a pair of binoculars worth PS1,620 were stolen on Sunday.
Regardless of your Northern or Southern heritage, you just might let out a rebel yell when the cashier tells you the 10x42 Rebel binoculars you are buying from Redfield will cost less than $200.
Additionally, it enables its users to enjoy the advantages of the visibility provided by binoculars without the extra bulk and cost of a conventional version of the product.
Of course it is necessary to realise the limitations of binoculars.