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Baader Planetarium Baader UBVRI Bessel Filters – Photometric (SET-Filters)
The new generation of Baader CMOS-optimized filters. A Baader Planetarium exclusive. Filters incorporating Baader Planetarium’s Life-Coat™ technology are so durable that Baader Planetarium warrants the coatings for the life of the filter.
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Baader UBVRI Bessel Filters – Photometric (SET-Filters)
$764.00
William Optics William Optics 1000 Mortar Tri-Pier Red with Standard 3/8" Plate Adapter
This William Optics tri-pier is made out of 6061T Aluminum and Stainless Steel.
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William Optics 1000 Mortar Tri-Pier Red with Standard 3/8" Plate Adapter
$761.00
William Optics William Optics 1000 Mortar Tri-Pier Red with Ioptron Adapter
This Tri-Pier from William Optics is a great accessory for those looking for the stability of the pier, but the leveling flexibility of a tripod.
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William Optics 1000 Mortar Tri-Pier Red with Ioptron Adapter
$761.00
Sky-Watcher AL-EQ55i Mount
Sky-Watcher AL-EQ55i Mount, Equatorial GoTo mount, 22-pound payload capacity, 0- 90° latitude range, SynScan Go To telescope mount with 42,900+ object database, Built-in WiFi , Controlled with SynScan Pro app for iOS and Android, Dual axis tracking, One 7
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Sky-Watcher AL-EQ55i Mount
$760.00
Takahashi TAKAHASHI FOA-60 Extender 1.7XR
The Takahashi Extender 1.7XR converts the FOA-60 telescope to the FOA-60Q, resulting in a final focal length of 901 mm.
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TAKAHASHI FOA-60 Extender 1.7XR
$760.00
Takahashi TAKAHASHI SE-M WOODEN TRIPOD
The Takahashi SE series tripods are designed specially for the serious astrophotographer and are compatible with the Takahashi EM-11 and EM-200 mounts.
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TAKAHASHI SE-M WOODEN TRIPOD
$760.00
Takahashi Takahashi Tube Holder for Takahashi Epsilon 180
Takahashi Epsilon 180 Tube Rings were designed specifically to fit the Takahashi Epsilon 180 telescope.
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Takahashi Tube Holder for Takahashi Epsilon 180
$760.00
Sky-Watcher Sky-Watcher Flextube 200P Collapsible Dobsonian 8" (203 mm)
Corresponding to the escalating "aperture fever" that has gripped amateur astronomy for several decades, an 8" diameter is now generally regarded as the minimum entry-level aperture for serious observing.
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Sky-Watcher Flextube 200P Collapsible Dobsonian 8" (203 mm)
$755.00
Celestron Celestron Regal M2 100ED Spotting Scope (Pre-Owned)
Combining exceptional optics with durable construction, the Regal M2 delivers bright, sharp, and true-to-life images in any environment.
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Celestron Regal M2 100ED Spotting Scope (Pre-Owned)
$750.00
GSO GSO 8" f/12 Classical Cassegrain Reflector Telescope OTA (White) (Pre-owned)
Classical Cassegrain telescope with 200mm aperture and focal ratio of f/12
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GSO 8" f/12 Classical Cassegrain Reflector Telescope OTA (White) (Pre-owned)
$750.00
Graflex Graflex Crown Graphic 4x5 field camera, Wollensak Velostigmat 127mm f4.7 Lens CLEAN!
The Graflex Crown Graphic 4x5 field camera, paired with the Graflex 2 flash, offers photographers a versatile and portable large format photography solution with excellent image quality and creative capabilities.
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Graflex Crown Graphic 4x5 field camera, Wollensak Velostigmat 127mm f4.7 Lens CLEAN!
$750.00
Antlia Antlia LRGB-V Pro series filters - 50mm x 50mm Square Unmounted
Antlia Antlia LRGB-V Pro series filters - 50mm x 50mm Square Unmounted
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Antlia LRGB-V Pro series filters - 50mm x 50mm Square Unmounted
$750.00
Antlia Antlia 3nm Narrowband Oxygen III (OIII) Pro Filter - 50mm x 50mm Square Unmounted
Antlia Antlia 3nm Narrowband Oxygen III (OIII) Pro Filter - 50mm x 50mm Square Unmounted
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Antlia 3nm Narrowband Oxygen III (OIII) Pro Filter - 50mm x 50mm Square Unmounted
$750.00
Antlia Antlia 3nm Narrowband Sulfur II (SII) Pro Filter - 50mm x 50mm Square Unmounted
Antlia Antlia 3nm Narrowband Sulfur II (SII) Pro Filter - 50mm x 50mm Square Unmounted
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Antlia 3nm Narrowband Sulfur II (SII) Pro Filter - 50mm x 50mm Square Unmounted
$750.00
Antlia Antlia 3nm Narrowband H-alpha (Ha) Pro Filter - 50mm x 50mm Square Unmounted
Antlia Antlia 3nm Narrowband H-alpha (Ha) Pro Filter - 50mm x 50mm Square Unmounted
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Antlia 3nm Narrowband H-alpha (Ha) Pro Filter - 50mm x 50mm Square Unmounted
$750.00
Hasselblad 500mm f8 C Tele-Tessar Lens (Pre-Owned)
Lens held in good condition, both ends includes lens coverings.
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Hasselblad 500mm f8 C Tele-Tessar Lens (Pre-Owned)
$750.00
RainbowAstro Rainbow Astro RSF Motor Focuser for RC (Specify Size)
Secondary Mirror Moving Motor Focuser for RC 8″, 10″, 12″ OTA. Can be easily mounted and liberates you from image shift.
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Rainbow Astro RSF Motor Focuser for RC (Specify Size)
$750.00
Carl Zeiss Carl Zeiss Biogon 21mm f4.5 Lens with original UV Filter S/N 3449033
High quality superwide lens - perfect for landscapes!
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Carl Zeiss Biogon 21mm f4.5 Lens with original UV Filter S/N 3449033
$749.99
Explore Scientific Explore Scientific U Mount with Tripod for Large Binoculars
When using large binoculars, a stable mount and tripod with a suitable load-bearing capacity are essential.
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Explore Scientific U Mount with Tripod for Large Binoculars
$749.99
Explore Scientific Explore Scientific FirstLight 10" Dobsonian - FL-DOB1005-02
This Dobsonian can be converted into a Newtonian telescope. If you ever wanted to take pictures, simply unscrew the bearings from the tube and place the scope on an EQ mount with the included Vixen style dovetail plate.

The unrivaled stiffness of the i
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Explore Scientific FirstLight 10" Dobsonian - FL-DOB1005-02
$749.99
Explore Scientific Explore Scientific Firstlight 6-inch Maksutov-Cassegrain OTA Only
Whether you’re looking to delve into the details of our solar system or explore inspiring deep sky treasures, this versatile FirstLight series telescope will fit your individual needs.
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Explore Scientific Firstlight 6-inch Maksutov-Cassegrain OTA Only
$749.99
Explore Scientific Explore Scientific 127mm f6.5 Achromatic Refractor
This 127mm f/6.5 telescope from Explore Scientific is a air-spaced doublet achromatic refractor with multi-coatings.
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Explore Scientific 127mm f6.5 Achromatic Refractor
$749.99
Lunt Lunt 40mm f/10 with B500 Blocking Filter Dedicated H-alpha Solar Telescope
Looking for portability in a high performance, dedicated solar telescope? Look no further than the Lunt 40 mm dedicated H-alpha telescope with B500 blocking filter! This lightweight (under 3 pounds!), grab-and-go style solar telescope is great for observi
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Lunt 40mm f/10 with B500 Blocking Filter Dedicated H-alpha Solar Telescope
$749.00
Optolong Optolong UBVRI Filter Set - 36mm Unmounted - UBVRI-36
This photometric UBVRI filter set includes five 36mm round unmounted filters: ultraviolet (U), blue (B), visual (V), red (R), and infrared (I).
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Optolong UBVRI Filter Set - 36mm Unmounted - UBVRI-36
$745.00