If you’re shopping around for the best telescope eyepieces, there are a few considerations you should always keep in mind: Focal Length However, they can be a very convenient option if you’re traveling and don’t want to carry a case full of eyepieces everywhere! What to Look For in an Eyepiece The problem here is that the quality is not usually as good as a regular eyepiece and the field of view is frequently smaller. A traditional eyepiece can only produce one magnification, but a zoom eyepiece will provide a range, allowing you to observe your target without having to switch eyepieces. One last thing if you’re on a budget and can’t afford a range of eyepieces, consider buying a zoom eyepiece instead. However, while being something of a luxury, Nagler and Ethos eyepieces are considered to be the best telescope eyepieces on the market, but fortunately, if it’s a wide field of view you want, there are less expensive options available. The problem with Nagler and Ethos eyepieces is that the extra lenses add to both the cost and the weight, with some weighing more than a pound and potentially costing more than the telescope itself. The design was further enhanced by TeleVue with their Ethos range of eyepieces, which are capable of producing a field of view spanning 110 degrees. Not only can Nagler eyepieces produce distortion-free images, but they also have an 80 degree field of view – nearly double that of a standard eyepiece. These three were the common standard types of eyepiece until 1979, when Albert Nagler produced a new type of eyepiece consisting of up to eight lenses. The catch? They generally have a smaller field of view and are more expensive. Like the Kellner design, orthoscopic eyepieces produce sharp views but they also offer greater contrast, longer eye relief and are almost completely free of distortion.
0 Comments
Leave a Reply. |