Optics

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.

Categories in Optics

Articles in Optics

By eHow Electronics Editor 0 comments
Landmarks is a menu option that defines and stores objects in the sky. You will be able to use this function as a reference when you are using your telescope... more »
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Meade's 12 Inch LX90 GPS Schmidt-Cassegrain Telescope has an Autostar feature that lets you view more than 30,000 planets, stars, galaxies, nebulae and comets at the push of a button. The Landmark menu option defines and stores objects in the ... more »
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The menu option "Landmarks" defines and stores the location of objects in the sky. Use this function as a reference while using your telescope... more »
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The Landmarks menu option on your Meade DSX-90 Altazimuth-Cassegrain telescope defines and stores objects in the sky. You will be able to employ this function as a reference when you are using the device... more »
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The Landmarks function of your Autostar computer controller lets you define landmarks (any terrestrial objects you want to view or use for orientation) and store their locations in the Autostar database. You can then find and view these landmarks ... more »
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Adding observing sites to your telescope's memory will help you quickly find your favorite celestial objects from different geographic locations. You can store up to six observing sites in the memory of your Autostar computer controller, which ... more »
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Adding observing sites to your telescope's memory will help you find objects you enjoy viewing without too much trouble while you are in different locations. Following these steps will help you find what you need quickly and enjoy your time with ... more »
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If you plan to observe using Autostar at different geographic locations, you can store up to six observation sites in Autostar's memory to help simplify your telescope setup. Perform these procedures using the "Site" options ("Add," "Select," ... more »
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Adding observing sites to your telescope's memory will help you find selected objects when you are in different geographic locations. Follow these steps... more »
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Adding observing sites to your telescope's memory will help you quickly find objects from varying locations. The Meade DSX-90 Altazimuth-Cassegrain Telescopeable lets you store up to six observation sites. Here is how the function works... more »
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Adjusting a scope on a bolt action rifle is relatively easy, but requires a couple of extra steps in comparison to other rifles due to the position of the bolt handle. By making these adjustments, you will increase your accuracy and consistency ... more »
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The "Focus" option on your ImageView VGA Digital Camera Binocular helps you to get the best angle while you take your picture. Focus is basically the length that you need to maintain between your eyes, the camera and the object. This then ... more »
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One of the special features of the Celestron VistaPix binocular/digital camera is the ability to adjust the image resolution, which allows you to balance image clarity and file size. Here's how to give your pictures a professional look... more »
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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 SK804TAEQ Tabletop Telescope:.. more »
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The Star Pointer Finderscope will superimpose a small red dot onto the sky so that you can align on an object. It features zero magnification and uses a coated glass window. The device employs a light-emitting diode that will not harm the window ... more »
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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 Sky-Watcher SK1206AZ3 Short Tube Refractor ... more »
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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 SK8035TAEQ, a red dot finder is used. Like all other ... more »
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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 astronomical object. Proper alignment of the ... more »
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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 as a red dot finder, should be precisely aligned ... more »
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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 glass-coated window for superimposing a red dot while ... more »
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The Meade 10-inch LightBridge truss tube Dobsonian telescope comes equipped with a red dot finder instead of the traditional crosshair configuration found in other telescopes. To get the most of your new red dot tool you need to align it with ... more »
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The Meade 12-inch LightBridge truss tube Dobsonian telescope comes equipped with a red dot finder instead of the traditional crosshair configuration found in other telescopes. To get the most of your new red dot tool you need to align it with ... more »
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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 finder with the main scope. Here's how... more »
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The Meade 8î LX90GPS Schmidt-Cassegrain Telescope comes with a lot of exciting features, below you will find out how to align the SmartFinder on your telescope... more »
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The SmartFinder remedies the situation present when attempting to find an object through an eyepiece. Viewing an object through an eyepiece is difficult because of the small field of vision. You must align the SmartFinder with the main telescope ... more »