What Are the Different Types of Telescope Eyepieces?
When it comes to stargazing, telescopes require different type of eyepieces to see specific stars at varying distances, depending upon the magnification and focal length. There are seven different models of telescope eyepieces. The models are Huygenian, Kellner, orthoscopic, Plossl, Erfle, and ultrawide eyepieces. Huygenian telescope eyepieces were the first of their kind, developed in the early 1600s by Christian Huygens. Due to the advances in technology, these eyepieces are obsolete for the most part. One version of this type of eyepiece is still used with inexpensive imported telescopes. The Huygenian eyepiece has a very small field of vision, which quickly leads to eye strain.
When it comes to stargazing, telescopes require different type of eyepieces to see specific stars at varying distances, depending upon the magnification and focal length. There are seven different models of telescope eyepieces. The models are Huygenian, Kellner, orthoscopic, Plossl, Erfle, and ultrawide eyepieces. Huygenian telescope eyepieces were the first of their kind, developed in the early 1600s by Christian Huygens. Due to the advances in technology, these eyepieces are obsolete for the most part. One version of this type of eyepiece is still used with inexpensive imported telescopes. The Huygenian eyepiece has a very small field of vision, which quickly leads to eye strain. Kellner telescope eyepieces are used by people interested in serious astronomy, as they have an apparent field of 40 degrees. The Kellner is one of the least expensive higher powered eyepieces. When used on low to medium settings, it can accomplish a clear, bright image. This type of eyepiece is often found
