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Celestron 1.25" Neutral Density Moon Filter The Celestron Neutral Density Moon Filter attaches to a 1.25” eyepiece to lower the amount of light ent...

Astrozap GSO Truss RC Light Shroud Astrozap Light shroud for GSO  truss RC telescopes.   In the Box Astrozap GSO Truss RC Light Shroud Warranty &a...

Astrozap Dual Channel Dew Controller Astrozap has redesigned its Dew Controller with new features including more reliable state-of-the-art electron...

Baader Morpheus 4.5mm 76° Even if a certain movie-classic hints otherwise – the Morpheus® are absolutely real. Featuring a true 76° field of view, ...

Baader Morpheus 14mm 76° Even if a certain movie-classic hints otherwise – the Morpheus® are absolutely real. Featuring a true 76° field of view, t...

Baader Morpheus 12.5mm 76° Even if a certain movie-classic hints otherwise – the Morpheus® are absolutely real. Featuring a true 76° field of view,...

Baader Light Blue Color Filter Largest free opening of all color filters on the market to eliminate any vignetting. CNC machined "grip crown" prov...

Baader Hyperion Zoom Barlow 2.25X The Baader Hyperion Zoom Barlow quickly attaches to any Hyperion 8-24mmm Clickstop zoom eyepiece, instantly conve...

Baader T2 to 1¼" ClickLock Eyepiece Clamp  with Built-in Diopter-Adjustment The Baader Planetarium Click-Lock Eyepiece Clamp (# T2-08) is a precisi...

Baader Clearglass Filter (C) for focusing/Dust Protection Baader Premium grade impermeable RGB-C Clearglass Filters. The Baader clear glass filte...

2" BDS-RT Baader Diamond Steeltrack® Focuser Baader Planetarium's 2" Refractor Diamond Steeltrack Focuser gives refractors a full 3" (76mm) of velv...

Astronomik CLS-CCD filter The Astronomik CLS CCD is suitable under light-polluted skies for DSLR Cameras, which have been remodeled for astronomica...

Astronomik Deep-Sky RGB filter Astronomik has added a new range of RGB filters to its line of World class products. The new Deep-Sky RGB filters ar...

Antlia IR Pass 850nm planetary 1.25" filter The Antlia IR Pass 850nm filter is an absorptive filter that allows infrared light with wavelengths of ...

Antlia SHO 7nm Prime Narrowband Pro Filters Antlia SHO Prime narrowband filter optimizes the FWHM (full width half maximum) to 7nm bandpass. The su...

Antares Speers-Waler Series4 14mm 86° The 1.25" Antares Speers-Waler Series4 14mm 86° offers a wider 86 degree AFOV than Series3 with all the same ...

Antares M42 Olympus T-Ring Adapts your Olympus E camera to M42 T Thread.   In the Box Antares M42 Olympus T-Ring Warranty & Manuals Antares 1...

Antares M42 Canon EOS T-Ring Adapts your Canon EOS camera to M42 T Thread.   Technical Specifications M42x0.75mm T-ring adapter, Canon EOS In the B...

Antares 2x 1.25" Twist-Lock Barlow Antares Twist-lock barlows make for easy eyepiece in-out and work with any barrel format. These extend focal len...

Antares 2" Neutral Density Filter Neutral density filters can reduce brightness across the visual spectrum without losing resolution, enhancing lun...

Antares 1.6x 2" Twist-Lock Barlow The Antares 1.6x 2" Twist-Lock Barlow can be used photographically with T2 thread output, or visually with the tw...

Antares 1.25" 90° Erecting Prism Diagonal EID90 is a 1.25" 90 degree erecting amici prism for terrestrial viewing and is not recommended for high m...

ADM D Series 3.5 lbs Counterweight with Side Mounting Option The ADM D Series 3.5 lbs Counterweight with Side Mounting Option fits D Series dovetai...

William Optics Micro 4/3 48mm T mount for Olympus - Space Gray   In the Box William Optics Micro 4/3 48mm T mount for Olympus - Space Gray (WO-YE...

William Optics Flattener FLAT68III The William Optics Flattener 68III was made for 6 -7.5 F ratio refractors. This high-quality flattener has been ...

William Optics 48mm T mount for Nikon Z Mirrorless Camera This high precision T-Mount has 48mm threads with outer hard black colour anodizing, and ...

Tele Vue Standard T-Ring Adapter for 2.4" The Tele Vue Standard T-Ring Adapter for 2.4" provides a standard T-ring thread to attach your camera too...

Tele Vue Quick Release Bracket The Tele Vue Quick Release Bracket fits Tele Vue Ring Mounts. This bracket also accepts Vixen and Orion “stalk” type...

Tele Vue Paracorr Type 2 Mount your DSLR or CCD to the Tele Vue Paracorr Type 2 lens assembly and the quality of full frame photos will be spectacu...

Tele Vue Panoptic 41mm The Tele Vue Panoptic 41mm eyepiece is a big brother to the 24mm Panoptic (largest 1.25″ field). With its 46mm field stop, ...