Optics

For years, the police force have used a radar system to help detect how fast a car was moving. However, this wasn't always as accurate as one would desire, with nearby cars and weather conditions...

Microscopes are imaging aids that allow us to see detailed pictures of objects too small to be seen with the naked eye. These scientific instruments come in different power magnifications. Without...

A USB microscope is a microscope that can be attached to your computer. It is similar to a digital microscope, except a USB microscope can also be used as a traditional microscope. Your USB...

Anton van Leeuwenhoek (1632 to 1723) was a Dutch cloth merchant who made literally hundreds of microscopes. Although compound lenses were invented at that time, they were not yet perfected, and so...

Radar is an acronym that stands for radio detection and ranging (RADAR). It uses radio waves to bounce off a distant object like a car, for example, and have that energy echoed back to an...

When you boresight a rifle scope, that means you're mounting the scope in a way so it is perfectly aligned with the sights of the rifle. By aiming your weapon at a fixed object through both the...

Your Meade telescope comes with a great gadget called Autostar. The Autostar system controls just about all the features of the telescope. It contains the object database, it slews (moves) your...

Your Mead telescope can provide a guided tour of the heavens that can be as inspiring as it is educational. Here's how the guided tour function works.

You can identify astronomical objects in the sky at night using the AutoStar on your Meade telescope. Here's how.

Even though it can be great to take a programmed tour of the sky with your Meade LX-90 Schmidt Cassegrain Telescope, it can be even more exciting to take a tour that you designed yourself. Here's...

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...

The Identify function of your Meade LX-90 Schmidt-Cassegrain allows you to identify objects that you have viewed at night using the arrow keys. Once you have an object centered, you can use the...

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 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...

Even the best binoculars are useless if you can't bring an object into focus. The Olympus Tracker 10x25 PCI Compact Binocular lets you zoom in on a subject with the flick of a dial. Here how to do it.

From a distant ship to a visible planet, many people enjoy viewing all sorts of objects through their telescope. If you are a telescope enthusiast, you know that you often want to change focus...

Since the Earth continually rotates, any objects you view through your Meade telescope will appear to move. Your telescope should automatically track objects so that you don't have to constantly...

Since the Earth continuously rotates, any objects you view through your Meade telescope will appear to slowly move. Automatically tracking these objects will keep them centered in your eyepiece so...

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 considered a great telescope for those interested in observing the sky, especially at night. The Finderscope is a pointing tool that uses a...

The Meade LX90 telescope generally operates in automatic mode. While you observe an object, the device adjusts to maintain concentricity as the earth rotates. However, certain objects, such as...

Bringing an image into focus is essential when using your binocular, so you should learn how to properly focus both eyepieces. The Olympus Roamer 10x21 DPC I Compact Porro Prism Binocular allows...

Knowing where to find the best objects and having a properly aligned telescope puts you in the best position for great star watching. Using Autostar with your Meade LX-90 can help explore the...

It's easy to find objects in the sky using setting circles for right ascension and declination. You will find the objects' coordinates in star charts or atlases.

"Landmarks" is a menu option that defines and stores the location of objects in the sky. Use this function as a reference while using your telescope.

Use Autostar's "Identify" menu to learn about any unknown objects you find in the sky.

You can manually move your Meade LX90GPS Schmidt-Cassegrain telescope to gain a better view of distant objects such as birds and mountaintops. Just follow these steps.

Setting your telescope to automatically track objects as the Earth rotates will eliminate the need to constantly readjust your device. As the telescope automatically tracks an object, it will...

With the Meade LX90GPS Schmidt-Cassegrain telescope, you don't have to hire an astronomer to guide you through the heavens. The instrument will do all the work for you. Just follow these steps.

You can use the Autostar on your Meade LX90GPS Schmidt-Cassegrain telescope to identify astronomical objects in the night sky by employing the arrow keys. Follow these steps.

You can observe objects in the sky by aligning the viewfinder. You will be able to align your viewfinder by following these steps.

A telescope’s eyepiece magnifies the light gathered by the optical tube. Each eyepiece has a focal length, expressed in millimeters, or “mm.” The smaller the focal length, the higher the...

A telescope’s eyepiece magnifies the light gathered by the optical tube. Each eyepiece has a focal length, expressed in millimeters, or “mm.” The smaller the focal length, the higher the...

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...

Because the Earth is constantly rotating, you will want your telescope to automatically track objects so that you are not constantly readjusting the device. As the telescope automatically tracks...

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...

The viewfinder assists with locating objects. In order to be used correctly, it must be aligned to the telescope. Here's how to do it.

"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.

The viewfinder must be aligned to the main telescope. Steps one through five should be completed during the day time. Step six, complete at night.

The Landmarks menu option defines and stores objects you see in the sky. You will be able to employ this function as a reference when you are using your telescope.

Because the Earth is constantly rotating, your telescope must automatically track objects so that you are not constantly readjusting the device. As the telescope automatically tracks an object,...

You can use the arrow keys on Autostar to identify objects you have found in the sky with your Meade DSX-90 Altazimuth-Cassegrain telescope. Center any object and use the "Identify" menu to...

In order to spot objects quickly and accurately even under low power, you must first align the viewfinder on your Meade DSX-125C Altazimuth-Cassegrain telescope. Here's how to do it.

Because the Earth continuously rotates, your DSX-125C Altazimuth-Cassegrain telescope should automatically track stars so that you don't have to readjust the device. If you follow these...

A telescope’s eyepiece magnifies the light gathered by the optical tube. Each eyepiece has a focal length, expressed in millimeters, or “mm.” The smaller the focal length, the higher the...