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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.
Showing 1-38 of 38 results
The Sky-Watcher SKMAK90SP Maksutov-Cassegrain Spotting Scope is a powerful device with a focal length of 1250mm. Assembling this spotting scope is considered easy. The entire assembling procedure...
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...
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.
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.
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...
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 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 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 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...
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...
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...
A finderscope is a small, secondary telescope mounted on the main telescope. It helps direct the telescope on the point of the desired object to be observed in the sky. A finderscope, also known...
A mount is the most vital component of a telescope. It assists in tracking the motion of moving stars or other moving objects in the sky. To attain maximum results, the telescope main tube has to...
Right Ascension (RA) is one of the sky coordinates. It is similar to the longitude of Earth. To find objects that are faint and difficult to trace, we have to use setting circles. This helps...
The finderscope is a supplementary telescope mounted on the main telescope. It helps to point the telescope at the desired object to be observed in the sky. In the case of the Sky-Watcher...
The Declination (DEC) flexible control cable is located at the fork arms of the telescope. Declination is a sky coordinate that is similar to the latitude of Earth. It is measured in degrees....
A counterweight is an important part of a telescope. It locks the telescope into the mount for proper transport and balancing. To install a counterweight, the counterweight rod must first be...
Declination (DEC) is similar to the latitude of Earth. It is measured in degrees. Subdivisions for DEC are measured in minutes and seconds of arc. One minute of arc is 60 seconds, and 60 minutes...
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...
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...
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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