Telescopes

A theodolite is a tool for measuring vertical and horizontal angles. It is used in triangulation networks. It looks like a small telescope and is used everywhere from construction sites to highway...

The resolution of a picture taken with a digital camera is typically represented by its megapixels. Unlike traditional photos, digital pictures are made up of thousands of tiny dots called pixels....

JVC makes a variety of different hard disk camcorders as part of its Everio line of camcorder. The hard disk "hybrid" camcorders record video saving it to an internal hard drive and are also...

A Dobsonian telescope is a Newtonian reflector type of telescope and is made up of an alt-azimuth mount and Sonotube. A Dobsonian telescope is a low-cost telescope that is designed to view deep...

There are two main types of telescopes: refractor telescopes and reflector telescopes. Refractor telescopes work by using a glass lens, while reflector telescopes use several mirrors. In spite...

For the most part, the biggest application for transformers in contemporary society is their ability to boost the voltage of an electrical current so that it can be transmitted over long...

The very first practical telescope was invented in 1608, and greatly improved by Galileo in 1609. Upon sharing his findings with the general public, Galileo ensured that anyone, rich or poor,...

The Sky-Watcher SK804TAEQ Tabletop Telescope has two types of setting circles—RA (Right Ascension) and DEC (Declination). These are used for locating faint objects in the night sky with the help...

The Sky-Watcher SK804TAEQ Tabletop Telescope is one of the most portable telescopes. Its diameter is 80mm and its focal length is 400mm. Here is how to attach the tripod of the Sky-Watcher...

The red-dot finder is a zero-magnification pointing tool that allows you to get a sharper image whenever you view objects through your telescope. Before using it, however, you must align the...

You must attach the telescope tube of the Sky-Watcher SK 804 tabletop telescope to the mount before you can use it. Here's how.

You determine the magnification power of a telescope from the focal length of the eyepiece and the focal length of the telescope. The eyepiece in the Sky-Watcher SK MAK series is either 10 mm or...

The whole point of having a telescope is to be able to view distant objects--clearly. If you don't adjust the focus, however, you'd do just as well squinting.

You can change the ATN Night Patriot Night Vision Monocular's eyepiece to alter the magnification. Here's how.

ATN Night Patriot Night Vision Monocular is a multipurpose night vision device that you can use as a compact hand-spotting scope, a hands-free goggle system or a weapon sight. Here's how to focus...

The Sky-Watcher SK909AZ3 telescope is a great choice for beginners. It is lightweight and sturdy. This telescope features slow motion horizontal and vertical control. You need to check whether the...

The SkyWatcher SK804AZ3 is a portable tube refractor telescope. It is easy to set up the tripod whenever and wherever you want. Here’s how to do it.

The Sky-Watcher SK804AZ3 is an air-spaced, multi-coated objective refractor with great image performance and is both portable and sturdy. Finderscope is a tool mounted on the telescope to help you...

The Sky-Watcher SK804AZ3 is a multi-coated refractor telescope with great image performance. It is portable and user-friendly. Finderscope is a tool mounted on the telescope to help you target an...

A Barlow lens can be attached to your telescope to increase the magnification power. It was named after Peter Barlow (1776-1862), professor of mathematics at the Royal Military Academy of...

The Sky-Watcher SK804AZ3 is an 80 mm telescope with a focal ratio of f/5 and focal length of 400 mm. It is a multi-coated refractor portable telescope. Focusing this telescope is easy. You can...

The Sky-Watcher SK1025AZ3 is a 102 mm telescope that allows you to get a better view of distant objects. It is a portable multi-coated achromatic refractor telescope with a tube dimension of 12 by...

The Barlow Lens, named after Peter Barlow, professor of mathematics at the Royal Military Academy of Woolwich, is a device that enhances the focal length of the Sky-Watcher telescope. The main...

Performing an Easy Two-Star Alignment is the fastest and easiest way to locate stars.

You will find that AutoStar's menus are organized for clear and easy navigation. The menus will be helpful when you are using your telescope.

To collect light and form an image, reflecting telescopes use a concave primary mirror. The Newtonian reflector uses a small secondary mirror located to the side of the main telescope tube in...

The Sky-Watcher SK909AZ3 refractor telescope is an ideal choice for all those who desire to do serious sky watching. This telescope comes with an aluminum tripod that is part of a quick and neat...

The Finderscope is a pointing tool in the Sky-Watcher SK909AZ3 refractor telescope. It looks like a mini telescope mounted on the main one. It can locate the objects in the sky, but it has only...

The Sky-Watcher SK909AZ3 refractor telescope is an ideal choice for those who take sky watching seriously. The telescope has a multi-coated achromatic objective lens, aluminum tube and is equipped...

The Sky-Watcher SK909AZ3 Refractor Telescope is considered a great telescope for those interested in observing the sky, especially at night. The Finderscope is a pointing tool that uses a...

A telescope must be focused accurately to view an object properly. An out-of-focus telescope will show blurs or nothing at all. The first time you use a new telescope, it will most likely be out...

The area that you can see through your telescope is known as the true or actual field of view. The field of view of your telescope is determined by the design of the eyepiece of the telescope....

The Sky-Watcher SK707AZ2 Refractor Telescope is considered a lightweight and sturdy model for viewing different objects. Mounting a telescope is the most important task of the assembly. Be sure...

The Finderscope is a tool mounted on a telescope to help you target an astronomical object. It is also called a Red Dot Finder. The Finderscope does not have high magnification power but is...

The SK707AZ2 refractor telescope is a light weight yet sturdy telescope making it an ideal companion for skywatchers. Before choosing the right eyepiece, make sure you browse through different...

The SK707AZ2 Refractor Telescope is considered an ideal choice for those keen on watching objects in the sky. This model is lightweight, portable and sturdy. The Finderscope is useful in locating...

The Barlow Lens, named after Peter Barlow (1776-1862), a professor of mathematics at the Royal Military Academy at Woolwich, England, is an additional device that enhances the focal length of a...

Focusing is the most important factor when you use a telescope for the first time. It is very likely that the telescope is out of focus at the initial stage. By appropriate focusing, the images or...

To use the Sky-Watcher SK707AZ2 Refractor Telescope with a camera, you need a camera adapter tube. It can work as a high magnification lens for your telescope. Attaching a camera adapter tube to a...

The area that you can see through your telescope is known as the true field of view or the actual field of view. The field of view of your telescope is determined by the design of the eyepiece of...

A Barlow lens is used when you intend to increase the magnification power of your telescope. Named after Peter Barlow (1776-1862), a professor of mathematics at the Royal Military Academy at...

A Sky-Watcher SK909AZ3 Refractor Telescope is an ideal choice for those who intend to view objects in the sky minutely. This model is equipped with an adjustable objective lens case which is a...

Sky-Watcher SK707AZ2 is an ideal choice for those who intend to view objects in the sky minutely. This model comes with an aluminum tripod that can help in better viewing of images. The tripod...

The Sky-Watcher SK7059AZ3 Short Tube Refractor Telescope is considered an ideal choice to enjoy sky watching. This refractor telescope model is equipped with an adjustable objective lens case...

The area that you can see through your telescope is known as the true field of view or the actual field of view. The field of view of your telescope is determined by the design of the eyepiece of...

The Sky-Watcher SK705AZ3 is a portable and short tube refractor telescope that allows you to set up your observatory anywhere. It is easy to dismantle and can be set up quickly whenever required....

The Finderscope is a tool mounted on a telescope to help you target an astronomical object. It is also called a Red Dot Finder. The Finderscope does not have high magnification power but is...

A Barlow lens is a negative lens that is used to enhance the focal length of the Sky-Watcher SK705AZ3 Short Tube Refractor Telescope. Greater focal length reduces the area and ensures higher...

Telescopes allow you to get a better view of objects in the sky. You need to properly focus to get a sharp image of the object under view. Focusing a Sky-Watcher SK705AZ3 Refractor Telescope can...

The Sky-Watcher SK705AZ3 Short Tube Refractor Telescope receives light through the objective lens. It is the closest lens to the object being viewed from the telescope. It sends the image to the...