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Celestron Celestron Regal M2 100ED
The Regal M2 spotting scope series is the next generation of our top-performing Regal F-ED spotting scopes.
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Celestron Regal M2 100ED
$1,049.95
Celestron Celestron Regal M2 65ED
The Regal M2 spotting scope series is the next generation of our top-performing Regal F-ED spotting scopes.
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Celestron Regal M2 65ED
$629.95
Celestron Celestron C70 Mini Mak
C70 Mini Mak is a small but powerful spotting scope that includes a tabletop tripod which has built-in slow motion controls, a built-in zoom eyepiece capable of 90x magnification, and soft carrying case.
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Celestron C70 Mini Mak
$159.95
Celestron Celestron UpClose G2 10x50 Porro Binocular
High Quality Binoculars at an affordable price
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Celestron UpClose G2 10x50 Porro Binocular
$51.95
Celestron Celestron SkyMaster 20x80
Features high quality BaK-4 prisms and multi-coated optics for enhanced contrast!
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Celestron SkyMaster 20x80
$209.95
Celestron Celestron Cometron 7x50
The large 50 mm objective lenses and multi-coated optics offer amazing light-gathering capabilities that bring celestial objects into bright, sharp focus, making them ideal for comet watching, stargazing, and viewing craters on the Moon.
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Celestron Cometron 7x50
$47.95
Arcturus Orion Mini 50mm Guide Scope
This Mini 50mm Guide Scope is ideal for guiding long-exposure astrophotographs with imaging telescopes up to 1500mm in focal length.
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Orion Mini 50mm Guide Scope
$99.95
ZWO ZWO 850nm IR Pass Filter - 1.25
IR 850nm Pass Filter is suitable for IR sensitive cameras.
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ZWO 850nm IR Pass Filter - 1.25
$29.00
ZWO ZWO NEW 7-Position EFW Color Filter Wheel for 36mm Filters - EFW-7X36-II
Our latest EFW (Electronic Filter Wheel), larger than the previous but still low on weight. Only 400 grams (14 oz)!
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ZWO NEW 7-Position EFW Color Filter Wheel for 36mm Filters - EFW-7X36-II
$299.00
ZWO ZWO D21 IR-CUT Protection Window
ZWO D21 IR-CUT protection window is suitable for ASI120MC, ASI120MC-S and ASI178MC cameras to protect the sensor from dust and humidity.
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ZWO D21 IR-CUT Protection Window
$19.00
SBIG SBIG AO-X for STX and STXL Cameras
The AO-X is a large aperture AO designed to be compatible with all STX and STXL series cameras, including the STX-16803, STXL-16200, STXL-11000 and STXL-6303.
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SBIG AO-X for STX and STXL Cameras
$2,195.00
Celestron Celestron T-Adapter, NexStar 4, C90 Mak and C130 Mak
This sturdy aluminum T-Adapter is the accessory of choice if you’d like to attach an SLR or DSLR camera to the smaller rear cell threads of a Celestron NexStar 4SE telescope or C90 spotting scope for prime focus photography.
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Celestron T-Adapter, NexStar 4, C90 Mak and C130 Mak
$34.95
Takahashi Takahashi 1.6X 2" Extender for TOA, Mewlon, and FS-Series Telescopes
The Takahashi Extender-TOA 1.6X is designed to work with the TOA series of Takahashi telescopes. It extends the focal length of these telescopes by 1.6X.
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Takahashi 1.6X 2" Extender for TOA, Mewlon, and FS-Series Telescopes
$530.00
Takahashi Takahashi FC-35 0.66x Reducer with CA 130 Ring
The Takahashi FC-35 reducer is a 0.66X reducer designed to work with the FC-100DF, FC-125, FS-102, FS-128 and FS-152 telescopes. This versatile reducer produces a 44 mm diameter image circle and a 0.66X reduction in focal lenth. The focal length reducti
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Takahashi FC-35 0.66x Reducer with CA 130 Ring
$890.00
Takahashi Takahashi Newtonian Collimating Tube with Crosshair
Takahashi Newtonian Collimating Tube with Crosshair
Used to provide a cross hair for collimating eyepiece for collimating Newtonians
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Takahashi Newtonian Collimating Tube with Crosshair
$64.00
Takahashi Takahashi 2" Eyepiece and Accessory Adapter for Takahashi FS78
The Takahashi TOA0040 Eyepiece Accessory Adapter was designed for the Takahashi FS78 Telescope. This occular adapter has a 2" barrel design that mates with your 2" accessories and eyepieces.

The Takahashi TOA0040 Eyepiece Accessory Adapter is part
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Takahashi 2" Eyepiece and Accessory Adapter for Takahashi FS78
$136.00
Antares Optical Antares 2" Focal Reducer for Eyepieces and Cameras 0.5x
This superb fully multi-coated double-element focal reducer takes advantage of the latest computer aided design techniques to achieve the highest standards of performance to dramatically increase the field of view (FOV) or imaging scale of your telescope
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Antares 2" Focal Reducer for Eyepieces and Cameras 0.5x
$49.00
Explore Scientific Explore Scientific 2" Field Flattener for APS-C Cameras - FFEDAPO-01
Designed for refracting telescopes, Explore Scientific’s Field Flattener can tackle the edge-of-field aberrations caused by this necessary curvature to ensure your long night at the eyepiece will not be in vain.
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Explore Scientific 2" Field Flattener for APS-C Cameras - FFEDAPO-01
$199.99
SBIG Boltwood Portable Cloud Sensor
A battery powered cloud sensor, perfect for those expeditions to dark-sky sites and star parties!
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Boltwood Portable Cloud Sensor
$499.00
ROR ROR Residual Oil Remover Lens Cleaner -- 2 ounce pump
This 2.0 oz Residual Oil Remover, or simply ROR, establishes a new definition of what a 'clean' surface is.
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ROR Residual Oil Remover Lens Cleaner -- 2 ounce pump
$17.99
Feathertouch Feathertouch A20-213--SCT Adapter for Meade 10-14" with FTF2015BCR Focuser
Scope specific adapter that threads directly to the large Visual Back of the Meade 10, 12, 14" SCT telescopes.
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Feathertouch A20-213--SCT Adapter for Meade 10-14" with FTF2015BCR Focuser
$100.00
USB Red Light - with Slide Switch
The lightest, most-flexible laptop light we've ever used!
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USB Red Light - with Slide Switch
$20.00
Tele vue X-Y Adjustable Accessory Mount - with Dovetail
This X-Y axis adjustable mount system lets you use the TeleVue TV-60 refractor as a superfinder for a larger TeleVue refractor.
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Tele vue X-Y Adjustable Accessory Mount - with Dovetail
$116.00
Svbony Variable Polarizing Filter 1.25 Inch
The 1.25" Variable Polarizing Filter is the all-phase lunar filter for large telescopes. Transmittance is continuously variable from 5% to 35%.
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Variable Polarizing Filter 1.25 Inch
$39.95