Telescopes

What telescope owner has never thought about photographing the wonders he sees in space? Modern technology makes it possible to take photographs using a smartphone, attaching it to the eyepiece of a telescope. However, there is also a special device for astrophotography – the astrograph. What is an astrograph? An astrograph is a camera with […]

Barlow lenses were invented and developed by Peter Barlow and consequentially bear his name. The lenses are not only used in telescopes but also in microscopes to serve the purposes of medicine, science, etc. this type of optical lens is usually used in combination with other different types of optics as well as optical systems. […]

Don`t have time to read? Jump to: Telescope Aperture Telescope aperture explained Telescope Aperture comparison Is bigger aperture better? Focal length of a telescope What does the Focal Length of a telescope? Is a longer Focal Length better for a telescope? What is a good focal ratio for a telescope? Formula of telescope Focal Length […]

Moon is the best object for beginner observers and not only for them. Its close location to the Earth allows stargazers to use not too expensive telescopes and even binoculars. Moreover, you can see the biggest sights with the naked eye. Therefore, can you imagine that having a powerful telescope, you can see the famous […]

There are several types of telescope mounts that can be purchased today. Every type serves specific needs and purposes and suited for certain individuals depended on their level and ability to use the tool. All of the telescope mount tripods differ in price and have different features. There are four major types of mounts that […]

Telescopes that we are used to seeing in astronomical observatories and neighbors’ back yards are not the only types that exist. There are also infrared telescopes and radio telescopes. The infrared telescopes are used in astronomy to study the thermal radiation of space objects. As you know, all types of matter, both liquid and solid, heated […]

Catadioptric, or mirror-lens telescopes, are compact and offer high optical performance. These telescopes are relatively expensive, but they’re worth the investment due to the high-quality images they produce. Many models can be equipped with computerized mounts. Catadioptric telescopes can feature mirrors up to 300 mm in diameter while still remaining quite compact. The optics of […]

In 59 years after Galileo`s discovery, Isaac Newton designed the first reflecting telescope, based on the scheme of Scottish astronomer James Gregory (his book “Optica Promota”, 1663 year). A reflector uses a mirror instead of lenses to gather light. After the hit in an objective, a beam of light goes to the opposite mirror and […]

A refractor, or a lens telescope, is the oldest type of telescopes. It was invented in 1609 by Galileo Galilei and was updated in consequence. Firstly, a refractor used two lenses: convex as an objective and concave in an eyepiece, that caused spherical and chromatic aberrations. This scheme was supplemented by a second lens of […]