Any stain or mark on the surface of a binocular lens tends to scatter light, thereby producing low-contrast viewing. However I know that one mans opinion is often not enough, and people will continue looking for more and more information before they finally decide to buy.
The higher the magnification power of your binoculars, the more noticeable the shaking of your hands becomes. A typical bird watcher will tell you that an important feature to look for in binoculars is how tough they are. With a cheap telescope, this will be of no use to you, as it will be hard to keep up.
The second number tells the size of the lens. The fog proof models have interior optical surfaces that won't fog due to rapid temperature changes or humidity. Many of the binoculars come with a carry case that can attach to a belt.
Many binoculars have an option for attached lens covers that open and close as you make your observations. Generally, a binocular lens cloth has a useable side and sometimes each side has different functions. Those new to the game should consider obtaining a pair of binoculars that posses a large field of view.
With the right binoculars, you'll be immersed in looked at the world around you. I hope these reviews and opinions help you in your research towards buying a new pair of binoculars, Nikon are a well established and respected company, and the Leupold range are just spectacular.
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