subject: An Overview Of Pocket Binoculars [print this page] What is meant by a "pocket binocular"? What is meant by a "pocket binocular"?
In the world of binoculars one can clearly distinguish between binoculars of normal size and binoculars known as "compact binoculars" Pocket binoculars are included in "compact binoculars."
A compact binocular is a pocket binocular when:
1.They have to be small enough to fit into a shirt or jacket pocket or anything similar. The length of the barrels could be 6 inches (153 millimeters) and the height should be around 3 inches (77 millimeters). It should be 4 inches (101 millimeters) wide, depending on the size of your pocket.
2.the binocular weighs max 12 ounces, or 16 ounces if you wish to include reverse porro's as well.
3.Roof prism binoculars, where the eyepieces are situated directly behind the objective lenses, are perfectly designed for being pocket size. They not only weigh less than the other type ("porro"), but are smaller by design as well; on top of this, they can fold even smaller when not used.
Positive aspects of pocket binoculars
1.The smallness of all pocket binoculars - in particular a roof prism design - makes them very convenient.
2.These binoculars are so light in weight , that you won't even notice them on your trips wherever you go - out in nature watching birds, or joining friends at a sports event.
3.Close focus: A distinct advantage of pocket binoculars is their ability to close focus. In this they not only beat normal size binoculars, but many bigger compact binoculars as well.
4.Ability: Pocket binoculars might be small, but are not inferior to ordinary or compact binoculars as such.
The cons of pocket binoculars
1.Brightness of image: The objective lenses of pocket binoculars are considerably smaller than the size of ordinary binoculars and smaller than many compact binoculars as well - usually 20-25mm in diameter. The smaller the lenses, the less light that enters through the lenses. However, this will only be a problem in dim light.
2.The optics of the eyepieces, diameter of the apertures and power of a binocular determine the width of the scene you're seeing through your binocular, known as the field of view (FOV). Since pocket binoculars have smaller apertures, you could end up with a smaller FOV you would like. Check the specs before you buy.
Choices you have to make when considering buying a pocket binocular
1.For what purpose are you looking to buy a pocket binocular? Example: It will make a difference to what you're willing to pay if your pocket binocular will be the only one you have or just an extra one.
2.How much are you willing to pay for your pocket binocular? In the case of binoculars quality does come at a price and for a good instrument you will have to be willing to pay more. All in all, the purpose you have in mind for the instrument will also play a role. If it will be the only binocular you'll have, consider paying more.
3.You should never compromise on quality. Always try to get the best instrument (within your price range). The most important feature are lens type and coatings: Just like all other binoculars, your pocket binocular should have "fully multi-coated" coatings on Bak-4 glass lenses. Water- and fogproof are always a bonus, whether you intend using the instrument in wet conditions or not.
4.Overall dimensions: The sizes of hands differ; pocket sizes differ as well. Make sure the one you choose is perfect for you as far as size (not too big, not too small) and weight are concerned.
