The basic construct of binoculars includes two adjacently placed telescopes.Each telescope has a couple of lenses that bring distant objects closer. There is also a prism-pair in each of the two chambers which help in right-side-up image orientation. Whether you choose binoculars for bird-watching, hunting, sport-action or concerts, it is the same construct that swings into action. Also, choosing the right pair of binoculars will make the difference in the hobby.
But quality binoculars are expensiveand you should put in some research before spending on them. We collected information that will help you pick the right pair of binoculars.
Thing to consider while choosing a binocular
- Ideal magnification
Going with a 10x or 8x binoculars is something you decide personally. If you a bird-watcher, the 10x ones would suit you better. But that would also imply a narrower field of view.The 8x magnification gives you a brighter and wider frame that is ideal for watching and following birds.
- Great optical design
In most binoculars, the primary lenses are spaced wider than the eyepieces which are majorly because of the Porro prisms that they use. While the binoculars may put on more size, the objects appear more three dimensional. The ones that employ roof prisms deliver similar quality, but at a greater price.
- Quality of the lens
Since most binoculars make use of glass lenses, the image quality is better. But these are naturally costlier than the plastic lenses. A plastic lens offering the same image quality will be tagged at a higher price. While glass lenses reflect some light, coating can compensate for the reflected light.
- Objective lens diameter
If you have noticed, binoculars are referred with two numbers: 10 x 50 or 7 x 35. The second number in each case is the diameter of the objective lens, represented inmillimeters. The first number is generally the magnification of the lens. The objective lens diameter is important when calculating the exit pupil value.
- Binocular exit pupil
The exit pupil is the number you obtain when dividing the objective diameter by the magnification of the lens. Most binoculars have an exit pupil in the range of 5 millimeters. But there are better and worse options too. A video review will help you stay closer to the right end of the scale.
- Binocular with wide field of view
The field of view is essentially the measure of environment that is captured in a single frame of the binoculars. A wider field of view is naturally more desirable since you do not have to move the binoculars more often. Most bird-watchers prefer binoculars with wider fields of view.
- Longer eye relief binoculars
Most binoculars will come with eyecups that retract to accommodate those who wear glasses. These also extend to shade the eyes. When you choose binoculars, go for the multi-adjustable, durable eye-cups. Adjust eyecups to the minimum value if you wear glasses. This will give maximum relief to the eyes.
- Waterproof binocular
There is a difference between the water-resistant and the waterproof models. The water-resistant ones would get you through the drizzling till you get the cover out. You need a waterproof model if you are bent using binoculars while it is raining or say watching whales! But it is always an optional choice.
The warranty on the pair is as important as the reputation of the manufacturer. Make sure you have most essential components of the binoculars (especially the lenses) covered under warranty. Also look for ones that give longer/extendable warranty. This is generally a sign of superior quality that the manufacturer is ready to back up for a cost.
Buying a new pair of binoculars is similar to buying a new cellphone. The feature list always appears impressive. The game is won or lost in the nuances. And the purchase is almost always apersonal one. The purpose assumes great importance too. A bird-watcher might need a wider field of view in comparison to a hunter. Checking on the lenses, the exit pupil and magnification are more than mandatory.
The good news is there is a lot of stuff you can choose from. Head out there and keep the prep handy. Make sure you get to find the one which suits your personal agenda the best.