Monocular are simple telescopes which are only half of a pair of binoculars. The image seen through monoculars appear in their correct orientation through the use of two prisms, whereas in most telescopes the images are inverted.
The best models will be ones with a very large objective lens, suitable for use in many conditions, but will be too heavy and cumbersome for use on the move. While cleaning your binoculars, you should take care to see that no cleaning mark or scratch is left on the surface of the lens. The first is the number of times magnification, and the second is the diameter of the objective lens.
Another feature to consider are the lens caps. You will need a magnification factor of at least 7, maybe up to 10 if you have a steady hand. Many binoculars have an option for attached lens covers that open and close as you make your observations.
Binoculars with larger fields of view may work better, but the cost is considerably more. Some high end binoculars, are so well constructed that they come with a lifetime guarantee. Some have special fire coating employs advanced technology that is designed to eliminate both infrared light and ultraviolet rays.
You want to look for lightweight, tough, comfortable ones with clarity. So, get a good pair of binoculars and enjoy the birding.
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