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Lunt High Resolution H-alpha Filter for DS Modules Available Options: HRG for DSII Unit, LS80THa HRG for DSII Unit, LS100THa HRG for SFPT, LS80MT/...

Antares Eyepiece Cap for 1.25" barrel Eyepiece cap are in soft rubber.    

Camera Angle Rotator for 2” M54 Focuser All New Camera Angle Rotator for 2” M54 Focuser Fits : Z61 and all other brand Focuser with M54 threads. In...

Lunatico Astronomia POCKETCW2 The improved version of our previous PocketCloudWatcher.The portable solution for cloud detection, measuring sky qual...

Pegasus Astro Indigo Off Axis Guider Our thin and solid design OAG can easily bond with our Indigo Filter Wheel. The OAG supports through holes (M2...

Buckeye Filter Masks for Filter Wheels These Filter Centering Masks will make it easy to center your filters in a filter wheel, and will block any ...

Player One IR685nm 1.25″ IR-Pass Filter S-series Player One S series filter using high quality optical glass substrate and multi-layer composite co...

Starfield 1.0x Field Flattener The Starfield 1.0x Field Flattener enhances the imaging capabilities of refractors by eliminating field curvature in...

Pentax AD 8x25 WP Binoculars Full-size performance in a compact-sized body. All A Series binoculars offer you impeccable viewing quality in a com...

Celestron Canon M-Mount T-Ring A T-Ring is one of the first accessories you will need to take pictures through a telescope or spotting scope. If yo...

William Optics Longer Adjusting Adapter for FLAT68III, FLAT7A This adjustable adapter offers a convenient, efficient way to upgrade your WO diagona...

Pegasus Astro Small Factor Top Plate for PPBADV Top Aluminium Plate for Pocket Powerbox Advance allows the mounting of additional equipment (E.g A ...

Celestron 25 Piece Prepared Microscope Slide Kit A wide assortment of specimen slides covering insect parts, plant parts, animal parts, etc.   Tech...

Celestron 2" Dielectric Star Diagonal with Twist-Lock Ensure maximum light transmission without loss of optical quality with the Celestron Dielectr...

Celestron 1.25" Star Diagonal The Celestron 1.25” Star Diagonal slides into the focuser (1.25”) of your refractor or catadioptric telescope and acc...

Bob's Knobs for SkyWatcher & Celestron Newtonian Primary Fits: SkyWatcher Newtonian telescopes with factory collimation screws.Primary collima...

Astrozap 8x50 Finder Scope Dew Heater The newly redesigned Astrozap 8x50 Finder Scope Dew Heaters are from the finest selection for an active dew f...

Baader T-2 / 7.5 mm Extension Tube (T-2 part #25C) 7.5mm optical path length Telescope side T-2 internal thread Focus side T-2 external thread For...

Baader Hyperion 5mm 68° Baader Hyperion Eyepiece 5mm Huge 68 degree wide angle field, tailored to the maximum Visual angle of the human eye Phanto...

Baader Diamond Steeltrack M48 Adapter BDS-Adapter with M48 outer thread to connect M48 parts Mounted instead of the standard clamp with the S58 do...

Baader CMOS-optimized L-RGB Filters New CMOS-optimized L-RGB filters from Baader Planetarium with Reflex-Blocker™ and Life-Coat™. Now with 47.4 mm ...

Askar FRA600 108mm f/5.6 Quintuplet APO Today Sharpstar announces the newest addition to its Askar FRA series, the Askar FRA600/5.6. Following the...

Antares Filter Neutral Density 25% Neutral density filters can reduce brightness across the visual spectrum without losing resolution, enhanci...

Antares W70 Serie 2 4mm 70°  W70 series eyepieces offer a wider field of view and more comfortable eye relief than Plossls. The 1.25" W70-4mm has (...

Antares W70 31mm 72° The 2" Antares W70 31mm 72°  gives you a big view of the sky at a low price. The 6-element fully multicoated design features 7...

Antares Adapter for Maksutov-Cassegrain And SCT Do you want the full repertoire of Schmidt-Cassegrain accessories for your Maksutov-Cassegrain? Jus...

Antares 2" 90° Dielectric Diagonal The Antares 2" 90° Dielectric Twist-Lock Diagonal has multilayer dielectric coating with 99% reflectivity in gre...