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Antares Twist-Lock Adapter 2" To 1.75" Extension ET1.5TL extends any 2" accessory by 1.75" with twist-lock retainer. Works with any barrel design: ...

Antares Speers-Waler Series4 9.1mm 86° The 1.25" Antares Speers-Waler Series4 9.1mm 86° offers a wider 86 degree AFOV than Series3 with all the sam...

Antares Roof Prism Binocular Adapter For Tripod BTARP is a really strong L-Bracket to hold your roof prism binoculars to a tripod or mounting. Made...

Antares Plössl 7.5mm 52° The 1.25" Antares Plössl 7.5mm 52° with 52 degrees apparent field and symmetrical design has low aberrations and great col...

Antares M42 5mm Camera Extender Adapter T2-EXT5 extends M42 T-thread by 5mm.   In the Box Antares M42 5mm Camera Extender Adapter Warranty & ...

Antares Finderscope Bracket Mount Mounting shoe for finderscope brackets and other accessories. FURB is a receiving shoe for dovetail accessories. ...

Antares 2" Adapter 1.25" Extension ET1 extends any 1.25" accessory by 2". Accepts 1.25" Filters; Side screw retainer.   1.25″x2″ extension tube wi...

Antares 2" 90° Dielectric Diagonal for SCT 2MDS-D: 2" Mirror Diagonal for Schmidt-Cassegrain thread-on with pressure band retainer and multilayer d...

ADM V Series Saddle to Fit Celestron AVX Mounts Fits Celestron AVX mount. Split clamp design grips the dovetail bar along the entire surface o...

ADM D Series Dovetail Bar for Celestron 8" The ADM D Series Dovetail Bar for Celestron 8" fits all Celestron 8″ OTA’s including CPC and HD models. ...

ADM D Series 7" Universal Dovetail Bar for Takahashi The ADM D Series 7" Universal Dovetail Bar for Takahashi fits D Series saddles and Takahashi a...

ADM D Series 7" Universal Dovetail Bar 2" Spacing The ADM D Series 7" Universal Dovetail Bar 2" Spacing fits D Series saddles and accessories. Can ...

William Optics Slide-base 50mm Guiding Rings with Adjustment Screws Weight：260g In the Box William Optics Slide-Base 50mm Guiding Rings 6 x Adju...

William Optics Flat73A for Z73            Technical Specifications Telescope Side Connection M63x1 Thread- Male Camera Side Connection ...

William Optics 90° 1.25" Erect Prism This 1.25" 90 deg. erecting prism will very happy to be used with that nice premium refractor of yours! Perf...

William Optics 48mm T mount for Fuji FX This high precision T-Mount has 48mm threads with outer hard black color anodizing and its made from High q...

William Optics 1.25" inch RedCat Erecting Prism High quality erecting prism with Red anodized plate, the complete housing is made by 6061T Alumin...

Tele Vue Set of 6 Accessory Tubes for 2.4" The Tele Vue Set of 6 Accessory Tubes for 2.4″ is a complete set of the tubes/spacers. This allows great...

Tele Vue SCT Bracket The Tele Vue SCT Bracket should be permanently installed on the desired area of your SCT using screws supplied with the SCT. T...

Telrad Reflex Sight Finder with Tinted Glass The Telrad Reflex Sight Finder is one of the best on the market. Easy to use, it can be fixed to any t...

Tele Vue Large Field Corrector The Tele Vue Large Field Corrector optimizes images at the edge of field when imaging through the Tele Vue-NP101, NP...

Tele Vue Imaging System Nosepiece for 2" Focuser This is a key component to the imaging system's versatility on non-"is" scopes. By placing the Tel...

Tele Vue Ethos 8mm The Tele Vue Ethos 10mm is parfocal with the Tele Vue Ethos 13mm. Its 59mm rubber grip diameter makes this model usable in bino...

Tele Vue Ethos 6mm The Tele Vue Ethos 10mm is parfocal with the Tele Vue Ethos 13mm. Its 59mm rubber grip diameter makes this model usable in bino...

Sky-Watcher Shutter Release Cable for Canon for Canon 5D The Sky-Watcher Canon 5D Cable Release makes capturing panoramic images and time-lapses wi...

Tele Vue Delos 3.5mm Includes continuously adjustable height eyeguard with index marks. Parfocal with all Tele Vue 1¼” eyepieces. Background 72° Ap...

Tele Vue Delos 17.3mm Includes continuously adjustable height eyeguard with index marks. Parfocal with all Tele Vue 1¼” eyepieces. Background 72° A...

Tele Vue DeLite 4mm 62° Apparent Field EyepiecesConcept: Just as Delos eyepieces were developed based on Tele Vue’s Ethos eyepiece design advanceme...