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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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- Astro-Tech Paradigm Dual ED (7)
- Astro-Tech PF (5)
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- Celestron Luminos (6)
- Celestron Omni Plossls (8)
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- Celestron X-Cel LX (7)
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- Lunt Solar System Eyepieces (1)
- Pentax XW (10)
- Pentax Zoom (1)
- Questar Brandons (6)
- TeleVue DeLites (9)
- TeleVue Delos (8)
- TeleVue Dioptrix (10)
- TeleVue Ethos (8)
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- TeleVue Plossls (8)
- TeleVue Zooms (1)
- Vernonscope Brandon (6)
- Vernonscope Brandon Flat Tops (6)
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Original price $429.00Original price $429.00 - Original price $429.00Original price $429.00Current price $378.05$378.05 - $378.05Current price $378.05| /
Pentax 40mm XW Extra Wide Angle 2" Eyepiece
PentaxIn StockThis long focal length 2" Pentax eyepiece is outstanding for low power/wide field astronomical observing with long focal length refractors and cata...
View full detailsOriginal price $429.00Original price $429.00 - Original price $429.00Original price $429.00Current price $378.05$378.05 - $378.05Current price $378.05| /Save $50.95 Save $0.00 -
Original price $499.95Original price $499.95 - Original price $499.95Original price $499.95Current price $449.00$449.00 - $449.00Current price $449.00| /
Pentax 23mm XW Extra Wide Angle Eyepiece
PentaxIn StockThis medium focal length Pentax provides sharp and very wide field images for both terrestrial and astronomical observing. Terrestrially, it is an ...
View full detailsOriginal price $499.95Original price $499.95 - Original price $499.95Original price $499.95Current price $449.00$449.00 - $449.00Current price $449.00| /Save $50.95 Save $0.00 -
Original price $479.95Original price $479.95 - Original price $479.95Original price $479.95Current price $429.00$429.00 - $429.00Current price $429.00| /
Pentax 16.5mm XW Extra Wide Angle Eyepiece
PentaxIn StockThis medium focal length Pentax is a dual-purpose eyepiece for both terrestrial and astronomical observing. Terrestrially, it is an excellent moder...
View full detailsOriginal price $479.95Original price $479.95 - Original price $479.95Original price $479.95Current price $429.00$429.00 - $429.00Current price $429.00| /Save $50.95 Save $0.00 -
Original price $134.00 - Original price $134.00Original price$134.00$134.00 - $134.00Current price $134.00| /
TeleVue 3.00 Diopter Dioptrx Astigmatism-Correcting Lens
TeleVueIn StockThis Dioptrx accessory lens corrects for an astigmatism of 3.00 diopters. (This would be a "CYL" value of 3.00 in your eyeglass prescription.) The...
View full detailsOriginal price $134.00 - Original price $134.00Original price$134.00$134.00 - $134.00Current price $134.00| / -
Original price $550.00 - Original price $550.00Original price$550.00$550.00 - $550.00Current price $550.00| /
Questar 16mm Cordless Reticle, for Use In Questar Starguide Only
QuestarMore on the wayThis Questar #19151 16mm illuminated crosshair reticle eyepiece has a self-contained battery-powered variable intensity LED for guided long-exposur...
View full detailsOriginal price $550.00 - Original price $550.00Original price$550.00$550.00 - $550.00Current price $550.00| / -
Original price $279.95 - Original price $279.95Original price$279.95$279.95 - $279.95Current price $279.95| /
Celestron Ultima Edge 30mm 2" Eyepiece 93454
CelestronMore on the wayHighlights 30mm parfocal Ultra Flat Field eyepiece designed for 2” focusers Incredibly crisp views from center to edge of field Fully multi-coated...
View full detailsOriginal price $279.95 - Original price $279.95Original price$279.95$279.95 - $279.95Current price $279.95| / -
Original price $249.95 - Original price $249.95Original price$249.95$249.95 - $249.95Current price $249.95| /
Celestron Ultima Edge 24mm 1.25" Eyepiece 93453
CelestronMore on the wayHighlights 24mm Ultra Flat Field eyepiece designed for 1.25” focusers Incredibly crisp views from center to edge of field Fully multi-coated, 8-el...
View full detailsOriginal price $249.95 - Original price $249.95Original price$249.95$249.95 - $249.95Current price $249.95| / -
Original price $159.95 - Original price $159.95Original price$159.95$159.95 - $159.95Current price $159.95| /
Celestron Ultima Edge 18mm 1.25" Eyepiece 93452
CelestronMore on the wayHighlights 18mm parfocal Ultra Flat Field eyepiece designed for 1.25” focusers Incredibly crisp views from center to edge of field Fully multi-coa...
View full detailsOriginal price $159.95 - Original price $159.95Original price$159.95$159.95 - $159.95Current price $159.95| / -
Original price $149.95 - Original price $149.95Original price$149.95$149.95 - $149.95Current price $149.95| /
Celestron Ultima Edge 15mm 1.25" Eyepiece 93451
CelestronMore on the wayHighlights 15mm parfocal Ultra Flat Field eyepiece designed for 1.25” focusers Incredibly crisp views from center to edge of field Fully multi-coa...
View full detailsOriginal price $149.95 - Original price $149.95Original price$149.95$149.95 - $149.95Current price $149.95| / -
Original price $99.95 - Original price $99.95Original price$99.95$99.95 - $99.95Current price $99.95| /
Celestron Ultima Edge 10mm 1.25" Eyepiece 93450
CelestronMore on the wayHighlights 10mm parfocal Ultra Flat Field eyepiece designed for 1.25” focusers Incredibly crisp views from center to edge of field Fully multi-coa...
View full detailsOriginal price $99.95 - Original price $99.95Original price$99.95$99.95 - $99.95Current price $99.95| / -
Original price $124.95 - Original price $124.95Original price$124.95$124.95 - $124.95Current price $124.95| /
Celestron Omni 56mm 2" Plossl 93328
CelestronMore on the wayHighlights Ultra-long 56mm focal length provides low power views in telescopes with a long focal length, perfect for viewing wide-field deep sky o...
View full detailsOriginal price $124.95 - Original price $124.95Original price$124.95$124.95 - $124.95Current price $124.95| / -
Original price $149.95 - Original price $149.95Original price$149.95$149.95 - $149.95Current price $149.95| /
Celestron 1.25" Observers Accessory Kit
CelestronIn StockHighlights This Celestron eight-piece accessory kit enhances the performance of your telescope Includes two high-quality 1.25” Plossl eyepieces, a...
View full detailsOriginal price $149.95 - Original price $149.95Original price$149.95$149.95 - $149.95Current price $149.95| / -
Original price $41.00 - Original price $41.00Original price$41.00$41.00 - $41.00Current price $41.00| /
Tele Vue Eyeguard Extender
TeleVueIn StockConcept: Many Tele Vue eyepieces, such as DeLite, Delos, Nagler type 4, 55 Plössl, 41 Panoptic have adjustable height eyeguards to permit comforta...
View full detailsOriginal price $41.00 - Original price $41.00Original price$41.00$41.00 - $41.00Current price $41.00| / -
Original price $279.95 - Original price $279.95Original price$279.95$279.95 - $279.95Current price $279.95| /
Astro-Tech 3.5mm 110° Field Waterproof 1.25"/2" Eyepiece
Astro-TechIn StockThe Astro-Tech 3.5mm o-ring sealed 1.25"/2" eyepiece combines a high power capability with a 110° apparent field to provide a jaw-dropping observin...
View full detailsOriginal price $279.95 - Original price $279.95Original price$279.95$279.95 - $279.95Current price $279.95| / -
Original price $269.99 - Original price $269.99Original price$269.99$269.99 - $269.99Current price $269.99| /
Explore Scientific 4.5mm 82 Degree 1.25" LER Waterproof Eyepiece
Explore ScientificIn StockExplore Scientific has improved their already impressive 82 Degree line with this addition of a 4.5mm Long Eye Relief 1.25" waterproof eyepiece. Wi...
View full detailsOriginal price $269.99 - Original price $269.99Original price$269.99$269.99 - $269.99Current price $269.99| / -
Original price $269.99 - Original price $269.99Original price$269.99$269.99 - $269.99Current price $269.99| /
Explore Scientific 8.5mm LER 82° Field Argon-Purged Waterproof 1.25" Eyepiece
Explore ScientificIn StockThis 8.5mm Explore Scientific LER 82° field argon-purged waterproof eyepiece is the right focal length to give you very useful exit pupil sizes and...
View full detailsOriginal price $269.99 - Original price $269.99Original price$269.99$269.99 - $269.99Current price $269.99| / -
Original price $300.00 - Original price $300.00Original price$300.00$300.00 - $300.00Current price $300.00| /
Questar 6mm Brandon Eyepiece
QuestarMore on the wayThis is an excellent very high power eyepiece (best used with the 7" Questars) for observing lunar and planetary detail, resolving globular cluster...
View full detailsOriginal price $300.00 - Original price $300.00Original price$300.00$300.00 - $300.00Current price $300.00| /