Main Features of Monocular
Before choosing your suitable monocular, there are some main features that you must considered as follows:
Magnification (first monocular number, the 6 in 6x15) Magnification is how many times the image is enlarged over normal. More might seem better, but with any optical instrument, the higher the magnification, the harder the instrument is to use. This is especially true in a small, lightweight instrument like a monocular. A magnification of 5x or 6x is a very practical magnification for a monocular. It will be easy to steady and have a wide field of view to help in locate the target. An 8x will be significantly harder to steady and have a narrower field of view. A 10x will be harder to use, yet.
You will see zoom monocular is never as durable as a fixed power model.
Objective size (second number, the 15 in 6x15) The second number is the size of the front lens in millimeters. The larger this second number, the better the optical performance, all else being equal. Once again, though, bigger is not necessarily better. The bigger the lens, the bigger and heavier the monocular. A 10x40 monocular will be roughly about half of a full size binocular. A 5x15 will be no larger than your thumb.
In terms of performance, optical quality is actually more important than objective lens size. In fact, you can have an optically excellent monocular that is also very small, if you are willing to pay the price.
Field of view: Field of view is the amount of territory you see when you look through the monocular. Imagine a fence 1000yards away. If a monocular has a field of view of 372 feet at 1000 yards, you will see 372 feet of the fence. If the field of view is 250 feet at 1000 yards, you will 250 feet of fence. Keep in mind a basic law of optics. As magnification goes up filed of view goes down. If you want a wide field of view, keep the magnification down.
Eye relief: Eye relief is the distance your eye can be from the eyepiece and still see the entire field of view. It is measured in millimeters. If you wear glasses when you observe, this is a critical feature, because you glasses won't allow you to get your eye close to the eyepiece. If you wear glasses, look for a model that lists 14mm of eye relief or more.
Close focus: This is the minimum distance at which a monocular will focus on an object. The close focus on some models is actually measured in inches, instead of yards, making these close focus models very versatile. There is nothing quite as spectacular as viewing a butterfly perched a few feet away through a good monocular.
Lens coatings: Lens coatings affect image brightness. The best monoculars are labeled as fully multi-coated, followed by multi-coated, then fully coated.
Waterproof: You'll obviously want a waterproof monocular if you are in a boat, around water or in a wet climate, but no real need to go waterproof for normal use.
So, if you’re choosing a monocular, follow this tips you can get a better suitable monocular online at http://www.binosmall.com
About the Author
http://www.binosmall.com, which is a online optics shopping mall providing optical products like binoculars, monoculars, rifle scope, range finder and spotting scope.
Tell others about
this page:
Comments? Questions? Email Here