The image seen through monoculars appear in their correct orientation through the use of two prisms, whereas in most telescopes the images are inverted. Night-vision binoculars are one of the most popular products in the market.
If you are planning on using your binoculars for birdwatching you want to look for a pair that is designed with good image quality. Hunting binoculars should feature some sort of rubberized exterior armoring to protect them from being damaged if dropped or bumped against trees, brush, rocks and so on. There are many different features to look for when making your purchase.
A good rule of thumb is, unless you are a private investigator or international spy, avoid buying a pair of binoculars with a magnification/zoom greater then 10x's. They can be used while hiking, camping, boating and hunting. Each coating is designed to provide the maximum transmission of light through the lens, and minimum reflection and diffraction, resulting in a brighter, clearer picture than with standard non-coated lens models.
Binoculars with a magnification power greater than 10 will be difficult to hold steady. The newer binoculars are very lightweight making them ideal to pack in your lightweight luggage.
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