Telescope eyepieces information, reviews.
Telescope eyepieces are what magnify the image your telescope is brining you.
It is important to know when to use what kind of eyepiece and what telescopes supply a lot of accessories. Meade has for their telescopes a very good line of accessories.
When using telescope eyepieces you should be aware of when to use which one. If you are scanning the sky’s for an object even after you found it in the finder scope you could have an extremely hard time with a eyepiece with to high of an magnification.
How to pick one that fits your needs.
Telescope Eyepieces are the magnification of the telescope. When you see something like 100X it is referring to the eyepiece.
To figure out a telescope eyepieces magnification. Telescopes focal length divided by eyepieces focal length = magnification
If you want a telescope eyepiece that is good for locating objects or viewing large objects you should consider a eyepiece with a wide field of view.
If you wear eyeglasses make sure the telescope eyepieces have at least a 15mm or 20mm eyerelif. Eye relief is the rubber lining around the eyepiece. Exit pupil is the image formed from the eyepiece.
Barlows and powermates are image amplifiers
Picking high power telescope eyepieces you should stick around the 150X range. I follow the popular rule of no more than 60X per inch of aperture. Of course if you find 60X per inch of aperture brings you above 150X then that’s fine.
Pros and Cons
| Name | Pros | Cons |
| Plossl | Low cost, eye relief is 1/15 the focal length minimal optical aberrations. |
Internal reflections |
| Orthoscopic | Excellent contract, minimal chromatic abberation minimal field curvature. |
Some internal reflections |
| Nagler | Huge apparent FoV, no optical aberration nice contrast. |
High Price |
| Panoptic | Eye relief is 1/25 the focal length, large true FoV | High prce, edge of field has pincushion distortion. |
| Ramsden | Lightwieght | Moderate chromatic aberation, moderate field curvature, small apparent FoV |
| Kellner | Very low cost, good eye relief. | Some chromatic aberration, some field curvature. |
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