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From microscopes to telescopes, rifle scopes to night vision, eHow’s got the optics information you’re looking for. In the market for binoculars? On the hunt for the perfect optical accessories for the bird watcher in your life? Advice from eHow experts make shopping for optics easy. Having trouble getting a good look at Mars on a perfectly clear night? Learn how to focus a telescope. From sighting wild game to locating a paramecium on a microscope slide, see it all with step-by-step instructions from resident experts.
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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...
Parts of Refractor Telescope
Discussion of the components of a refractoring telescope. Learn how a telescope works in this free home astronomy equipment video from a telescope designer and manufacturer.
A telescope allows you to explore the skies and see well beyond the capacity of the human eye. The telescope has certainly come a long way from when Galileo first viewed the craters of the moon in...
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 with a tripod height of 71-123 cm. It is a multi-coated achromatic refractor telescope considered good for beginners as well as those traveling...
The Sky-Watcher SK1025AZ3 is a 102 mm telescope with a tube dimension of 12x50 cm. It is a multi-coated achromatic refractor useful to both beginners and traveling observers. The finder scope is a...
The Sky-Watcher SK1025AZ3 Telescope is good for beginners and traveling observers. The finder scope is a tool mounted on a telescope to help you target an astronomical object. It does not have...
The Sky-Watcher Refractor Telescope is great for viewing distant objects in the sky. Read on to learn how to attach the Sky-Watcher Short Tube Refractor Telescope to the mount.
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...
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 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...
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...
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 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...
A Finderscope is great for locating objects quickly. Often, finding a distant object with the main telescope becomes time-consuming. A Finderscope (a low power telescope) can be attached to your...
Telescopes have varied eyepieces. A Sky-Watcher SK1206AZ3 Short Tube Refractor Telescope may incorporate different types of eyepieces. The eyepiece is a critical component of a telescope as it...
Every telescope has an eyepiece that allows you to view and focus on objects. In the case of refractor telescopes, including the Sky-Watcher SK1206AZ3 Short Tube Refractor Telescope, a diagonal is...
One of the main reasons for using a telescope is advanced photography. A telescope can be attached to a camera for high quality detailed photos. The Sky-Watcher SK1206AZ3 Short Tube Refractor...
Sometimes locating distant objects can be difficult. In such cases, a low power telescope can be attached to the main scope of the Sky-Watcher SK1206AZ3 Short Tube Refractor Telescope for enhanced...
A Barlow lens is an additional lens that can be attached to the Sky-Watcher SK1206 Short Tube Refractor Telescope to enhance the telescope’s focal length. The greater the focal length, the higher...
You can attach a Sky-Watcher SK1206AZ3 Short Tube Refractor Telescope to its mount in two ways. The telescope can be attached with or without a multi-function plate. Here’s how you can attach the...
Focusing the telescope is important to getting sharper images. You may have to focus your telescope frequently depending on the distance of the object, outside temperature and flexures. Besides,...
The Sky-Watcher SK1206AZ3 Short Tube Refractor telescope is a heavy instrument. It is difficult to hold in your holds while viewing distant objects.Sky-Watcher provides a tripod to lend stability...
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