The Kellner eyepiece was designed in 1849 and has been a mainstay in the optics market ever since. It is considered to be the best of the beginner lenses. If you’re new to telescopes and want to bring stargazing into your hobby umbrella, you can’t do much better than to start with a Kellner. A … Read more
The orthoscopic eyepiece has been around for quite some time, as it was originally patented in 1880 by Ernst Abbe. It’s not the “go-to” choice amongst eyepieces anymore, either with microscopes or telescopes, however, it’s been on a sort of “come-back” role in recent years. An orthoscopic eyepiece is a lens that is used primarily … Read more
Both the Kellner and Plossl eyepieces have their pros and cons, with the Plossl winning out in quality while the Kellner is less expensive Telescopes aren’t as simple as they seem and actually have so many parts and pieces that it can be overwhelming for new sky watchers. One of the most important pieces of … Read more
A reticle is a grid or pattern of fine lines built into the focal plane of an eyepiece lens for optical tools and instruments. The reticle eyepiece enables viewers to obtain measurement references or pinpoint objects observed through telescopic sights, optical microscopes, firearm sights etc… In modern devices, a digital image superimposed on a screen or eyepiece may … Read more
A Ramsden eyepiece is the simplest example of an eyepiece for a high quality optical instrument, containing two identical plano-convex lenses. The Ramsden eyepiece is one of several eyepiece options when a single simple magnifying lens is inadequate due to aberrations. It is particularly common in instruments which have a scale or micrometer wires. If … Read more
Huygens eyepieces are used for magnification in optical devices, such as telescopes and microscopes. These eyepieces consist of two planoconvex lenses separated a short distance in the eyepiece, enhancing images using only white lights. For more information regarding Huygens eyepieces, such as how they work, where they come from, and the pros and cons to … Read more
There is something wondrous about spotting a distant planet in your telescope and understanding that not only is that planet traveling faster than a bullet but that you are also viewing it in the past. When it comes to viewing the stars, you want the best eyepieces available. The Plössl eyepiece is one such tool … Read more
Unlike traditional lenses, an aspheric eyepiece does not have a spherical surface. This non-spherical surface is able to correct aberrations, often leading to more improved and cheap optical results. Aspheric eyepieces are often used in glasses, telescopes, and other optical objects as a result. Whether you are a fan of telescopes or need eyeglasses yourself, … Read more
Fast telescopes are great for a multitude of things whether capturing brighter astrophotography quickly or viewing the wider expanse of outerspace but, choosing the eyepieces that compliment this faster nature of your telescope can be a little tricky. So, if you’re looking for a solution to this problem, this article will go over 5 of … Read more
When using eyepieces after a bit of time there is a good chance that it will get dirty but, the reason you’ve found yourself her to ask yourself if its actually worth cleaning them due to all the delicate material used on the lens. In general terms yes you should clean your eyepieces and filters … Read more
