Collection

$19.00

ZWO ZWO 1.25" Atmospheric Dispersion Corrector

ZWO Atmospheric Dispersion Corrector is used to reduces the effect of atmospheric dispersion on lunar and planetary images

Add to cart

ZWO 1.25" Atmospheric Dispersion Corrector

$149.00

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.

Add to cart

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.

Add to cart

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.

Add to cart

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

Add to cart

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

Add to cart

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

Add to cart

Takahashi 2" Eyepiece and Accessory Adapter for Takahashi FS78

$136.00

Takahashi Takahashi FSQ 106 Adapter for Takahashi Diagonal - TKA30545

Do you have two quality Takahashi products you'd like to put together, but it won't quite work? Then relax... Takahashi has devised a way to enjoy both your Tak FSQ 106 and their premium diagonal in an inexpensive way.

Add to cart

Takahashi FSQ 106 Adapter for Takahashi Diagonal - TKA30545

$70.00

Unihedron Sky Quality Meter LE (Ethernet Enabled) - SQM-LE

An ethernet-enabled SQM model for night-time sky brightness monitoring!

Add to cart

Sky Quality Meter LE (Ethernet Enabled) - SQM-LE

$340.00

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.

Add to cart

Explore Scientific 2" Field Flattener for APS-C Cameras - FFEDAPO-01

$199.99

A battery powered cloud sensor, perfect for those expeditions to dark-sky sites and star parties!

Add to cart

Boltwood Portable Cloud Sensor

$499.00

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.

Add to cart

Feathertouch A20-213--SCT Adapter for Meade 10-14" with FTF2015BCR Focuser

$100.00

The lightest, most-flexible laptop light we've ever used!

Add to cart

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.

Add to cart

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%.

Add to cart

Variable Polarizing Filter 1.25 Inch

$39.95

Howie Glatter Howie Glatter Holographic Grid Attachment for Collimator

Square Grid Projection Attachment. A wide pattern spanning 21 degrees, best for fast scopes down to f/2.7

Add to cart

Howie Glatter Holographic Grid Attachment for Collimator

$80.00

Bob's Knobs Bob's Knobs for C11 f/10 with “Trifid” Fastar Secondary Housing and Metric Collimation Screw Threads

Part: C11metfst
Fits: Celestron 11” (28 cm) f/10 SCT versions (metal or carbon fiber tube) with metric thread factory collimation screws and "Trifid" rotary cover Fastar secondary housing. Factory collimation screws are black Phillips. These knobs will f

Add to cart

Bob's Knobs for C11 f/10 with “Trifid” Fastar Secondary Housing and Metric Collimation Screw Threads

$24.95

Televue Original 1.25 Inch Rubber Eyeguard as supplied with Type 6 Naglers and Panoptic 24mm.

Add to cart

Tele vue Rubber Eyeguard 1.25

$10.00

Portable power pack for your computerized Celestron telescope using Lithium Iron Phosphate (LiFePO4) chemistry
Smaller, lighter, safer, and easier to maintain than lithium-ion and sealed lead acid designs

Add to cart

Celestron PowerTank Lithium

$149.96

Celestron Celestron Car Battery Adapter - 18769

Power your Celestron computerized telescope from your car battery or a portable 12V DC power supply

Add to cart

Celestron Car Battery Adapter - 18769

$30.95

Pentax PZ-20 35mm AF Film SLR with Pentax 80-200mm Lens

Add to cart

Pentax PZ-20 35mm AF Film SLR with Pentax 80-200mm Lens

$129.00

Olympus E-510 10MP DSLR Camera 14-42mm & 40-150mm Lenses Charger Bag Tested

Add to cart

Olympus E-510 10MP DSLR Camera 14-42mm & 40-150mm Lenses Charger Bag Tested

$279.99

Nikon MD-2 Motordrive w/ MB-1 Battery Pack (Pre-Owned)

Add to cart

Nikon MD-2 Motordrive w/ MB-1 Battery Pack (Pre-Owned)

$229.00