What Are Telescopes
Binoculars act as windows to space. It is with telescopes that we can study the solar system and view star conjunctions. Not only that, various planets, galaxies, satellites, and asteroids that we can only see in books and magazines will be brought closer to us by telescopes. They function as tools that break down the barriers between human beings and the universe. The universe is no longer a mystery that exists beyond our reach, and we owe it all to telescopes.
Modern telescopes come with a wide range of accessories, and it is with the help of these accessories that it is much easier to use telescopes successfully. Let’s see what are the important accessories that fit well and are “must haves” for most binocular users:-
Filters – These filters are very important to binocular users because they reduce eyepiece glare and scatter light, making it less of a hassle for us to see distant objects.
Eyepiece – This is a very important piece of equipment and its absence can render the telescope useless. Eyepieces come in a variety of sizes, and if you add more than one eyepiece to your binoculars, you can enjoy clear viewing of even the smallest and most distant objects.
Mounts – Mounts are stands for telescopes. It is the mount on which the telescope rests. Since the telescope does not perform well with vibration, you should ensure that it is placed on a stable mount.
Barlow lens – The Barlow lens helps in magnifying telescopes. These lenses are available in different sizes and we have to be careful in choosing the size that best fits the eyepiece.
There are two main types of telescopes, refractor (Galileo) telescopes, and reflector (Newtonian) telescopes. A refractor telescope uses an objective lens that bends light towards the eyepiece. While a reflector telescope uses a mirror that collects the light and then directs it to the eyepiece.
Although both refractors, reflectors, and binoculars are easily available in the market, we should consider the following points before buying a binocular.
Don’t be overwhelmed by the magnification of the telescopes. This is because magnification alone is useless if it only produces large but blurry images.
Aperture – This is the most important factor when deciding on a binocular. The aperture is the opening that gathers light, so it’s important to choose a telescope with a larger aperture to ensure clearer and more detailed image quality.
Resolution – allows binoculars to produce a more detailed image. So always opt for a telescope that has a higher resolution. Moreover, since the resolution is also determined by the aperture, the larger the aperture, the better the resolution.
Focal Length – The distance between the optical center of the lens or mirror and the optical center of the eyepiece is known as the focal length. Focal length is what determines the magnification in binoculars. Longer focal lengths mean more magnification.
If we are careful to remember the above points, it won’t take us long to choose a telescope the next time we want to buy it. If we are careful about remembering the above points then it won’t take us long to choose a telescope the next time we want to buy one for ourselves.