Are TeleVue eyepieces good?
Tele Vue Nagler telescope eyepieces offer an 82-degree “spacewalk” view of the night sky. But a large field of view isn’t all these eyepieces are known for. Their sharpness, contrast, and brightness are unparalleled in the industry. Tele Vue Plossl telescope eyepieces set the standard in this time-tested design.
What is a Nagler eyepiece?
A sharp-to-the-edge eyepiece with one small problem. The eye relief is so short that you have to practically place your eye on the lens to appreciate its wide field of view.
Where are Tele Vue eyepieces made?
All TeleVue eyepieces are made in either Japan or Taiwan. The Plossls are one of their lines that to the best of my knowledge have always been manufactured in Japan, to TeleVue’s specs.
Are TeleVue Plossls good?
The Televue Plossl consistently gave outstandingly better edge of eyepiece performance, far more contrast and sharper images. Now for a 1.25″ Celestron 12mm Omni Plossl compared to a 1.25″ Televue 11mm Plossl. Again, we have near dead-ringers in design, magnification, field of view and eye relief – but not performance.
Are Plossl eyepieces good?
Plössl eyepieces are good all-around performers, producing sharp images at the center of the field, but they have only four lens elements. Better edge correction with a short-focus telescope is one of the things you pay extra money for, and sophisticated eyepiece designs have as many as eight elements.
What is Ramsden eyepiece?
noun Optics. an eyepiece consisting of two plano-convex crown-glass lenses of equal focal length, placed with the convex sides facing each other and with a separation between the lenses of about two-thirds of the focal length of each.
Is Plossl better than Kellner?
In short, Plossl eyepieces are generally better than Kellner eyepieces, but they also tend to be more expensive. The one caveat to this is that Plossls, because of their increased complexity, also have a wider spectrum of possible quality.
What is an orthoscopic eyepiece?
An orthoscopic eyepiece is a lens that is used primarily in microscopes and telescopes. It magnifies an image and the lens is always closest to the eye of the observer. This amounts to a short eye relief, which is a chief complaint amongst some.
What is a Kellner eyepiece?
Kellner eyepieces are a 3-lens design. They are inexpensive and have fairly good image from low to medium power and are far superior to Huygenian or Ramsden design. The eye relief is better than the Huygenian and worse than the Ramsden eyepieces. The biggest problem of Kellner eyepieces was internal reflections.
What is a Plossl eyepiece for?
Plõssl: Also known as symmetric eyepieces, they are composed of two achromats (crowns facing each other). Plössl eyepieces offer long eye-relief and a superior field of view to that of the orthoscopic. They do fall short of the orthoscopic design in distortion, however.
Are Kellner eyepieces any good?
The Kellner is the best of the inexpensive eyepieces. This style of lens has been around for many years and it contains one doublet (two lenses together) and one singlet lens for a total of three pieces of glass inside. The Kellner does not have any excellent characteristics, but it also has few real flaws.
What is the difference between Kellner and Plossl?
A Kellner eyepiece has 3 lenses, while a Plossl has 4. A Kellner eyepiece has 1 double lens and 1 single lens. These lenses are connected together. The Plossl eyepiece has 4 lenses, consisting of 2 identical double lenses.