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Eyepieces & Barlows
What is an eyepiece: A telescope collects the light of faint and/or distant objects and forms a fixed-size image of those objects at the telescope’s prime focus. An eyepiece is simply a small microscope that enlarges a portion of that image so you can see more detail.
The importance of good eyepieces: Every photon of light collected by a telescope passes through an eyepiece before it reaches your eye. That light is therefore afflicted by every optical problem in that eyepiece – and the cheaper the eyepiece, the more problems it is likely to have. A $10 eyepiece will make a $2000 telescope perform like a $10 toy. If your telescope’s eyepieces are the simple two-element designs labeled H (Huygenian), R (Ramsden), or SR (symmetrical Ramsden), they are basically toy eyepieces and should be replaced.
Eyepieces are half of your scope’s optical system, and usually the most complex half. They should be at least the same quality as your scope (preferably better). A good telescope won’t improve a poor eyepiece – but a good eyepiece will get the most out of a so-so scope.
What eyepiece should I get first: When buying your first eyepieces, resist the urge to immediately buy the highest powers possible. Very high powers require experienced observers and excellent seeing conditions (dark, clear, steady skies) to get the most from them. Medium power eyepieces, on the other hand, give good images over a much wider range of seeing conditions.
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Original price $99.95 - Original price $99.95Original price$99.95$99.95 - $99.95Current price $99.95| /
Celestron 8-24mm Zoom, 1.25" Eyepiece
CelestronIn StockThis fully multicoated Celestron 8-24mm zoom eyepiece gives you a virtually infinite number of magnifications in a single very reasonably-priced ey...
View full detailsOriginal price $99.95 - Original price $99.95Original price$99.95$99.95 - $99.95Current price $99.95| / -
Original price $428.01 - Original price $428.01Original price$428.01$428.01 - $428.01Current price $428.01| /
TeleVue 3mm to 6mm Nagler 1.25" Zoom Eyepiece
TeleVueIn StockIn conventional zooms, the apparent field of view and the usable eye relief change as the focal length changes. Likewise, objects go markedly out o...
View full detailsOriginal price $428.01 - Original price $428.01Original price$428.01$428.01 - $428.01Current price $428.01| / -
Original price $119.95 - Original price $119.95Original price$119.95$119.95 - $119.95Current price $119.95| /
Astro-Tech 9mm to 27mm 1.25" Zoom Eyepiece
Astro-TechIn StockThis 9mm to 27mm Astro-Tech zoom eyepiece is a fantastic choice for astronomers of every experience level. This Astro-Tech 9mm to 27mm zoom eyepiec...
View full detailsOriginal price $119.95 - Original price $119.95Original price$119.95$119.95 - $119.95Current price $119.95| / -
Original price $359.00 - Original price $359.00Original price$359.00$359.00 - $359.00Current price $359.00| /
Pentax 8-24mm SMC 1.25" Long Eye Relief Astronomical Zoom; 21-63x or 26-78x Spotting Scope Zoom
PentaxMore on the wayThis is an ultra-premium six-element zoom eyepiece. It has a long eye relief that's particularly well-suited to those who must wear eyeglasses whil...
View full detailsOriginal price $359.00 - Original price $359.00Original price$359.00$359.00 - $359.00Current price $359.00| /