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DVDWS - Dovetail Weight Set
Losmandy$59.00Works with both D and V series Losmandy plates or equivalent (Celestron CGE/CGEM/CG-5, Vixen). Dovetail adapter with a 2 inch long threaded stainle...
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DVR108 Guidescope Rings - 108mm
Losmandy$114.00DVR108 Guide Scope Rings. Works with both Losmandy D Style and V Series Vixen Style plates. 108mm (4.25") I.D. rings with three point adjustment. A...
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DVR108/66 Three-Ring Autoguider Set
Losmandy$149.00DVR108/66 Three Ring AutoGuider Scope Setup. Two Rings to hold the AutoGuider Scope and one Ring to stabilize the camera/guider. (Dovetail plate a...
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DVR125 Guidescope Rings - 125mm
Losmandy$95.00DVR125 Guide Scope Rings. Works with both Losmandy D Style and V Series Vixen Style plates.125mm (5.0") I.D. rings with three point adjustment. Adj...
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DVR160 Guidescope Rings - 160mm
Losmandy$125.00Discontinued DVR160 Guide Scope Rings. Works with both Losmandy D Style and V series Vixen Style plates. 160mm (6.3") I.D. rings with three point a...
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DVSBS - Dovetail Side-by-Side
Losmandy$250.00Side by side plate. Incorporates two saddle plates mounted parallel to each other. Used for mounting two optical systems side by side, by rotating ...
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DVWS - Dovetail Weight Set
Losmandy$59.00Works with both D and V series Losmandy plates or equivalent (Celestron CGE/CGEM/CG-5, Vixen). Dovetail adapter with a 5 inch long threaded stainle...
View full details$59.00Dropship -
E-LUX 40mm Eyepiece - 2"
Celestron$79.9540mm Kellner eyepiece designed for 2” focusers 3-element lens design with fully multi-coated optics Wide 56° apparent field of view allows you t...
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In Stock
EAF Bracket for Feathertouch 2.5/3.0" Focusers
Starizona$69.95Machined aluminum bracket and shaft coupler to attach a ZWO EAF motor to a 2.5" or 3.0" Feathertouch Focuser. Also fits Feathertouch retrofit kits...
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In Stock
EAF Bracket for Feathertouch 3.5" Focusers
Starizona$69.95Machined aluminum bracket and shaft coupler to attach a ZWO EAF motor to a 3.5" Feathertouch Focuser.
$69.95In Stock -
In Stock
EAF Bracket for Feathertouch Micro Focusers
Starizona$54.95Now includes couplers for both the original EAF (5mm shaft) and the new EAF (4mm shaft). Starizona's EAF Bracket for Feathertouch Focusers allows y...
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In Stock
Easy Field Guide to Common Desert Birds
Amer Travelers Pr$2.99In clear and concise language and drawings, these booklets describe the common species the reader is likely to come across in Southwestern terrain.
$2.99In Stock -
Eclipse Optic Cleaning Fluid
Photographic Solutions$12.95ECLIPSE lens cleaner is the highest purity lens cleaner available, containing less than 5 parts per million (ppm) of contamination (the whitish res...
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ECLIPSMART 10X25MM ROOF SOLAR BINOCULARS
Celestron$47.95COMPACT SOLAR BINOCULAR: This dedicated solar binocular offers 10x magnification and 25mm objective lenses with built-in filters for safe, detai...
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EclipSmart 12X50mm Porro Solar Binoculars
Celestron$129.95LARGE APERTURE SOLAR BINOCULAR: This dedicated solar binocular offers 12x magnification and large 50mm objective lenses with built-in filters for...
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EclipSmart 20X50mm Porro Solar Binoculars
Celestron$129.95POWERFUL 20x SOLAR BINOCULAR: This dedicated solar binocular offers 20x magnification and large 50mm objective lenses with built-in filters for g...
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In Stock
Eclipsmart Solar Filter For 6” Schmidt-Cassegrain Telescopes
Celestron$59.95SOLAR SAFE TELESCOPE FILTER: Filter conforms to the ISO 12312-2:2015(E) international safety standard for filters directly viewing the Sun. The ...
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In Stock
Eclipsmart Solar Filter For 8” Schmidt-Cassegrain Telescopes
Celestron$74.95SOLAR SAFE TELESCOPE FILTER: Filter conforms to the ISO 12312-2:2015(E) international safety standard for filters directly viewing the Sun. The ...
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EdgeHD 11" Optical Tube Assembly (CGE Dovetail)
Celestron$4,499.00Experience our best optical performance with EdgeHD’s aplanatic, flat field Schmidt-Cassegrain optics for pinpoint stars all the way to the edge...
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EdgeHD 14" Optical Tube Assembly (CGE Dovetail)
Celestron$7,699.00Experience our best optical performance with EdgeHD’s aplanatic, flat field Schmidt-Cassegrain optics for pinpoint stars all the way to the edge...
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EdgeHD 800 OTA
Celestron$1,699.00The EdgeHD optical system takes all of the compact power popularized by the SCT and combines it with an improved high definition optical system for...
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EdgeHD 9.25" Optical Tube Assembly (CGE Dovetail)
Celestron$3,099.00Experience our best optical performance with EdgeHD’s aplanatic, flat field Schmidt-Cassegrain optics for pinpoint stars all the way to the edge...
View full details$3,099.00 -
Elements: A Visual Exploration of Every Known Atom in the Universe book
Black Dog & Leventhal$19.99With more than 1 million copies sold worldwide, The Elements is the most entertaining, comprehensive, and visually arresting book on all 118 elemen...
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Elite Navy Cerakote Finished Bullet Space Pen
Fisher$42.00Conceived in a dream in July 1948, Paul Fisher was soon machining a new pen design shaped from solid aluminum. It became the first Fisher ball poin...
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End Cap 3.0" Feather Touch Focusers
Starlight Instruments$150.00This 3.0" threaded End Cap fits our Feather Touch 3" Focusers and has a female thread dimension of M68x1 in which allows the attachment of M68x1 ma...
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End Cap 3.5" for SkyWatcher M65 Male Threaded Accessories
Starlight Instruments$160.00This 3.5″ End Cap fits the 3.5″ Feather Touch focusers for M65x1 SkyWatcher male threaded accessories
$160.00 -
In Stock EQ-AL55i Pier Extension
Sky-Watcher$100.00Pier extension for the EQ-AL 55i mount. This accessory raises the mount head by 8.5 inches and increases clearance for the counterweight bar and us...
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EQ6 to Wave Steel Tripod
Sky-Watcher$235.002-inch rolled steel tripod legs EQ6 style heavy duty tripod Designed for Sky-Watcher Wave mounts and Wave Pier Extensions Also compatible with NE...
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In Stock
$55.00In Stock -
In Stock
EQ6R-Pro Pier Adapter Kit
starizona$299.00It has a cylindrical recess to accept the mounting post on the bottom of the EQ6R-Pro mount head. An included bolt is used to secure the mount to t...
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Equatorial Planisphere - Guide to the Stars
Ken Press$16.95Until now, most planispheres were designed for either the northern or southern hemispheres exclusively. Now, this star chart works for those living...
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Dropship
Esprit 100mm ED Triplet APO Refractor Telescope
Sky-Watcher$3,210.00Triplet super-apochromatic design Three-element, air-spaced optical assembly virtually eliminates false color 100mm aperture, 550mm focal length, ...
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Esprit 120mm ED Triplet APO Refractor Telescope
Sky-Watcher$4,165.00Triplet super-apochromatic design Three-element, air-spaced optical assembly virtually eliminates false color 120mm aperture, 840 focal length, f/...
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Esprit 150mm ED Triplet APO Refractor Telescope
Sky-Watcher$8,250.00Triplet super-apochromatic design Three-element, air-spaced optical assembly virtually eliminates false color 150mm aperture, 1050mm focal length,...
View full details$8,250.00 -
Dropship
Esprit 80mm ED Triplet APO Refractor Telescope
Sky-Watcher$2,230.00Triplet super-apochromatic design Three-element, air-spaced optical assembly virtually eliminates false color 80mm aperture, 400mm focal length, f...
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In Stock
EvoFF - Field Flattener for SkyWatcher EvoGuide 50ED
Starizona$119.00The Starizona EvoFF field flattener turns the Skywatcher Evoguide 50 into a sharp, portable, wide-field imaging scope. The EvoFF has also been test...
View full details$119.00In Stock