Optics

Laser lovers are everywhere while they have to admit that they're often upset by the unfocused beam of their laser pointer or handheld lasers. It's the upsetting collimated laser beam though the...

An optical microscope relies on light in order to produce an image, so the amount of light has great influence on the image produced. Two terms used to describe the way this image is viewed are...

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...

A security camera is an invaluable part of any home or business. Though we'd all like to believe crimes will never happen to us, it is better to have a camera and not need it than need a camera...

A lot of people make the assumption that the only way to focus a pair of binoculars is using the center focus, which makes sense because it is the most intuitive approach when you try to adjust...

Focusing a microscope properly is key to seeing all the fine detail you expect. A microscope will almost never have the right focus when you first use it to look at a specimen. That is why it is...

An extension tube for a telescope or other optic acts between the objective lens and the eyepiece of the instrument by spacing and funneling light. Extension tubes affect focus capability by...

ATN Night Patriot Night Vision Monocular is a multipurpose night vision device that you can use as a compact hand-spotting scope, a hands-free goggle system or a weapon sight. Here's how to focus...

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...

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.

While observing distant objects, you must the focus on the Olympus Tracker 12x25 PCI Compact Binocular to gain maximum clarity. Here's how to do it.

As anyone who has ever operated binoculars before will tell you, you must be able to effectively and quickly focus to ensure that you'll catch a glimpse of that rare bird, or see that military...

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...

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...

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...

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...

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...

What if you had a device that let you see a crack on the opposite building of your house, the birds on the far-off nest, the cricketer clearly in a crowded stadium or your child's performance on...

A binocular is a vital piece of any serious bird watcher's equipment, as it makes the hobby easier and more enjoyable. THe Bushnell binocular is lightweight and small enough to fit in a large...

Focusing your Meade NightView Digital Night-Vision Monocular requires practice, but it is a straightforward process. Here's how to master the procedure.

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...

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,...

A telescope must be focused to show a proper image. 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 of focus. Get it...