Home » How Tos » Electronics » Optics
BROWSE HOW TOs

Check Out All Categories


RSS Feed

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

How to Use Insta-Focus with your Bushnell 7x35 Wide Angle Perma Focus Binocular
By eHow Electronics Editor 0 comments
Binoculars are tools of the trade for a number of different hobbies, especially bird watching. You can use binoculars to look at birds up close without scaring them away. Bushnell binoculars offer several different focus modes. Each focus mode ... more »
Home » Electronics » Optics » Binoculars
How to Use Setting Circles to Find Objects With the Celestron Telescope
By eHow Electronics Editor 0 comments
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... more »
Home » Electronics » Optics » Telescopes
How to Use Smartfinder with Your Meade LX-90 Schmidt-Cassegrain Telescope
By eHow Electronics Editor 0 comments
The Smartfinder on the Meade LX-90 makes it simple for you to find constellations. Here's how to target your favorite stars:.. more »
Home » Electronics » Optics » Telescopes
How to Use the Automatic Tracking Feature of the Meade LX90 GPS Schmidt-Cassegrain Telescope
By eHow Electronics Editor 0 comments
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 you won't have to continually adjust your instrument... more »
Home » Electronics » Optics » Telescopes
How to Use the Autostar Arrow Keys to View an Object Through A Meade LX90GPS Schmidt-Cassegrain Telescope
By eHow Electronics Editor 0 comments
While viewing either land or astronomical objects through your Meade LX90GPS Schmidt-Cassegrain telescope, you can use the arrow keys to move the device. Here's how they work... more »
Home » Electronics » Optics » Telescopes
How to Use the AutoStar Identify Feature on the Meade LX90GPS Schmidt-Cassegrain Telescope
By eHow Electronics Editor 0 comments
You can identify astronomical objects in the sky at night using the AutoStar on your Meade telescope. Here's how... more »
Home » Electronics » Optics » Telescopes
How to Use the Barlow Lens With the Sky-Watcher SK1025AZ3 Short Tube Refractor Telescope
By eHow Electronics Editor 0 comments
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 advantage of the Barlow Lens is that it provides ... more »
Home » Electronics » Optics » Telescopes
How to Use the Barlow Lens With the Sky-Watcher SK1206AZ3 Short Tube Refractor Telescope
By eHow Electronics Editor 0 comments
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 is the magnifying power. In a nutshell, a Barlow ... more »
Home » Electronics » Optics » Telescopes
How to Use the Barlow Lens With the Sky-Watcher SK705AZ3 Short Tube Refractor Telescope
By eHow Electronics Editor 0 comments
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 magnifying power. The lens is named after Peter Barlow ... more »
Home » Electronics » Optics » Telescopes
How to Use the Barlow Lens With the Sky-Watcher SK707AZ2 Refractor Telescope
By eHow Electronics Editor 0 comments
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 telescope. The greater the focal length, the better ... more »
Home » Electronics » Optics » Telescopes
How to Use the Barlow Lens with the Skywatcher SK804AZ3 Short Tube Refractor Telescope
By eHow Electronics Editor 0 comments
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 Woolwich. A Barlow lens decreases the field of view and ... more »
Home » Electronics » Optics » Telescopes
How to Use the Barlow Lens With the Sky-Watcher SK909AZ3 Refractor Telescope
By eHow Electronics Editor 0 comments
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 Woolwich, England, this special lens provides relief to ... more »
Home » Electronics » Optics » Telescopes
How to Use the Digital Zoom Feature on Your Meade NightView Digital Night-Vision Monocular
By eHow Electronics Editor 0 comments
The 2x digital zoom feature on your Meade NightView Digital Night-Vision Monocular lets you bring objects into closer view. Here's how it works... more »
Home » Electronics » Optics » Night Vision
How to Use the GO TO Function of the Meade LX90GPS Schmidt-Cassegrain Telescope to Find a Known Star
By eHow Electronics Editor 0 comments
You can use the GO TO function on your Meade LX90GPS Schmidt-Cassegrain telescope to immediately find a known star. Wait until nightfall and follow these steps... more »
Home » Electronics » Optics » Telescopes
How to Use the GO TO Function of the Meade LX90GPS Schmidt-Cassegrain Telescope to Find a Planet
By eHow Electronics Editor 0 comments
Once you know how to utilize the GO TO function on your Meade LX90 GPS Schmidt-Cassegrain telescope, you won't have to search for planets; the instrument will practically lead you to them. Just follow these steps... more »
Home » Electronics » Optics » Telescopes
How to Use the GO TO Function to Find Saturn With Your Meade DSX-125C Altazimuth-Cassegrain Telescope
By eHow Electronics Editor 0 comments
Finding Saturn with your telescope is an exciting experience that leaves you feeling in touch with nature. By following these steps, you will be able to locate Saturn and marvel at this amazing celestial body... more »
Home » Electronics » Optics » Telescopes
How to Use the Go To Function to Find Saturn with Your Meade DSX-90 Altazimuth-Cassegrain Telescope
By eHow Electronics Editor 0 comments
Finding Saturn with your Meade DSX-90 Altazimuth-Cassegrain telescope can be an exciting experience, one that leaves you feeling in touch with nature. By following these steps, you will be able to quickly locate the planet and marvel at one of ... more »
Home » Electronics » Optics » Telescopes
How to Use the Guided Tour Function of the Meade LX90GPS Schmidt-Cassegrain Telescope
By eHow Electronics Editor 0 comments
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... more »
Home » Electronics » Optics » Telescopes
How to Use the Identify Feature of Autostar on the Meade LX90GPS Schmidt-Cassegrain Telescope
By eHow Electronics Editor 0 comments
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... more »
Home » Electronics » Optics » Telescopes
How to Use the Identify Function of Your Meade LX-90 Schmidt-Cassegrain Telescope
By eHow Electronics Editor 0 comments
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 Autostar and the Identify feature to obtain more ... more »
Home » Electronics » Optics » Telescopes
How to Use the Infra Red Illuminator with the ATN Night Spirit Night Vision
By eHow Electronics Editor 0 comments
An Infra Red (IR) Illuminator is used in night vision equipment where there is insufficient light to see an object. The Infra Red light significantly improves the visibility, which is often compromised at night. Objects that are hardly visible to ... more »
Home » Electronics » Optics » Night Vision
How to Use the Mode Key to Display Altitude Coordinates of the Meade 12 Inch LX90GPS Schmidt-Cassegrain Telescope
By eHow Electronics Editor 0 comments
The mode key on your AutoStar is similar to the escape key on a computer's keyboard. It allows you to go back to the previous menu or data level until the top level, Select Item, is reached. However, if you press and hold the mode key, you can ... more »
Home » Electronics » Optics » Telescopes
How to Use the Mode Key to Display Altitude Coordinates of the Meade LX90GPS Schmidt-Cassegrain Telescope
By eHow Electronics Editor 0 comments
The mode key on your AutoStar is similar to the escape key on a computer's keyboard. It allows you to go back tot he previous menu or data level until the top level, Select Item, is reached. However, if you press and hold the mode key, you can ... more »
Home » Electronics » Optics » Telescopes
How to Use the Mode Key to Display Local Time the Meade LX90GPS Schmidt-Cassegrain Telescope
By eHow Electronics Editor 0 comments
The mode key on your AutoStar is similar to the escape key on a computer's keyboard. It allows you to go back tot he previous menu or data level until the top level, Select Item, is reached. However, if you press and hold the mode key, you can ... more »
Home » Electronics » Optics » Telescopes
How to Use the Mode Key to Display RA Coordinates of the Meade LX90GPS Schmidt-Cassegrain Telescope
By eHow Electronics Editor 0 comments
The mode key on your AutoStar is similar to the escape key on a computer's keyboard. It allows you to go back to the previous menu or data level until the top level, Select Item, is reached. However, if you press and hold the mode key, you can ... more »
Home » Electronics » Optics » Telescopes
SEARCH

Copyright © 1999-2008 eHow, Inc. Use of this web site constitutes acceptance of the eHow Terms of Use and Privacy Policy.

Partner Sites

Demand Media