Telescopes & Astronomy Equipment on Sale
Telescopes and astronomy equipment on sale give you the opportunity to acquire high-performance instruments at reduced prices, perfect for exploring the night sky. Whether you are an experienced enthusiast or an amateur looking to expand your setup, these deals make astronomy more accessible.
You’ll find telescopes, eyepieces, filters, and accessories suitable for various types of observation, from planets to deep-sky objects. Sales offer the chance to try new models or upgrade your existing setup without compromising quality, all at a good value. We also have overstock sales of astronomy equipment at reduced prices.
This page is regularly updated to provide the best prices on astronomy equipment. Whether your goal is to introduce others to astronomy or enhance your personal observations, these promotions make it easier to access reliable, high-quality instruments. Explore our offers and discover tools that will enrich your observing sessions while staying within your budget. You can also discover our secondhand and used astronomy equipment or open boxes of astronomy equipment.
William Optics Camera Angle Rotator for 2.5" M63 Focuser (M-CAA63)
William OpticsWilliam Optics Camera Angle Rotator for 2.5" M63 Focuser All New William Optics Camera Angle Rotator for 2.5" M63 Focuser Fits : Z73, Z103, Z126...
View full detailsWilliam Optics 1.25" inch RedCat Erecting Prism
William OpticsWilliam Optics 1.25" inch RedCat Erecting Prism High quality erecting prism with Red anodized plate, the complete housing is made by 6061T Alumin...
View full detailsWilliam Optics 1.25" DURA BRIGHT Dielectric Diagonal (D-125D-C-DB)
William Optics5.0 / 5.0
1 Review
William Optics 1.25" DURA BRIGHT Dielectric Diagonal Introducing New model William Optics Dura-Bright diagonal - a dramatic step forward in the evo...
View full detailsWilliam Optics 48mm T mount for Pentax K - Black (TM-PT-K-M48)
William OpticsWilliam Optics 48mm T mount for Pentax K - Black In the Box William Optics 48mm T mount for Pentax K - Black Warranty & Manuals William O...
View full detailsWilliam Optics Binoviewer Package (E-BINO-P)
William Optics5.0 / 5.0
1 Review
William Optics Binoviewer Package William Optics does it better and especially cheaper! Until today, you could choose only between high-end expensi...
View full detailsWilliam Optics 1.25" 90° Erect Prism for Cat 61 WIFD (D-EP90-125-RC61)
William OpticsWilliam Optics 1.25" 90° Erect Prism for Cat 61 WIFD Transform your observing experience with this 90° erect-image prism diagonal, ideal for both t...
View full detailsWilliam Optics Elite Drawer OAG Kit (M-OAG-ED)
William OpticsWilliam Optics Elite Drawer OAG Kit The Elite Drawer OAG Kit integrates Off-axis Guiding and Filter Drawer functionality into one compact, streamli...
View full detailsWilliam Optics 50 mm Finder Mounting Bracket & Rings (M-FB50-B)
William OpticsWilliam Optics 50 mm Finder Mounting Bracket & Rings This excellent new quick-release 50mm finderscope bracket is easy to use, very convenient ...
View full detailsWilliam Optics Flat61 for ZenithStar 61 (P-FLAT61A)
William OpticsWilliam Optics Flat61 for ZenithStar 61 This flattener is for ZenithStar 61. Technical Specifications Telescope Side Connection M54x...
View full detailsWilliam Optics 48mm T mount for Sony E - Black (TM-SN-E-M48)
William OpticsWilliam Optics 48mm T mount for Sony E - Black In the Box William Optics 48mm T mount for Sony E - Black Warranty & Manuals William Optics ...
View full detailsWilliam Optics 2" Durabright Diagonal (D-DIG2D-C-DB)
William OpticsWilliam Optics 2" Durabright Diagonal This 90° 2"mirror-type star diagonal has a Dura-Bright 12mm thick mirror and dielectric mirror coatings for 9...
View full detailsWilliam Optics Camera Angle Rotator for 2” M54 Focuser (M-CAA54)
William OpticsCamera 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...
View full detailsWilliam Optics Fluorostar 132 with 3.7" Rack and Pinion Focuser
William OpticsWilliam Optics Fluorostar 132 Triplet APO f/7 with 3.7" Rack and Pinion Focuser Simply put: a joy to use. You will be blown away by the small deta...
View full detailsWilliam Optics Flat73A for Z73 (P-FLAT73A)
William OpticsWilliam Optics Flat73A for Z73 Technical Specifications Telescope Side Connection M63x1 Thread- Male Camera Side Connection ...
View full detailsWilliam Optics Gran Turismo 81 IV Triplet APO f/5.9
William OpticsWilliam Optics Gran Turismo 81 IV Triplet APO f/5.9 The William Optics Gran Turismo 81 IV Triplet APO f/5.9 has been designed to deliver excellent ...
View full detailsWilliam Optics High Latitude Vixen Style Base Mount (YG-IO-SG01H)
William OpticsWilliam Optics High Latitude Vixen Style Base Mount 100% precision CNC made . It’s big upgrade for the stability and adjustment Adjustment from...
View full detailsWilliam Optics 48mm T mount for Nikon Z Mirrorless Camera (TM-NK-Z-M48)
William OpticsWilliam Optics 48mm T mount for Nikon Z Mirrorless Camera This high precision T-Mount has 48mm threads with outer hard black colour anodizing, and ...
View full detailsWilliam Optics M42 Adapter for Elite Drawer OAG Kit (AD-OAG-C-M42)
William OpticsWilliam Optics M42 Adapter for Elite Drawer OAG Kit Light-In Side Trapezoid lock structure for OAG Light-Out Side M42 × 0.75 In the B...
View full detailsWilliam Optics D Series 400mm Dovetail Plate
William Optics5.0 / 5.0
1 Review
William Optics D Series Dovetail Plate Technical Specifications Length 400mmWeight 1.43kg Type : Losmandy In the Box William Optics D Se...
View full detailsWilliam Optics Extension Bar For iOptron Skyguider Pro (M-IO-EB20RD)
William OpticsWilliam Optics Extension Bar For iOptron Skyguider Pro Length: 11.9cm Weight: 105g Technical Specifications Length 40cmWeight 1.43kg In the Box W...
View full detailsWilliam Optics Fluorostar 120 f/6.5 Triplet Refractor (A-F120)
William OpticsWilliam Optics Fluorostar 120 A precision-crafted apochromatic refractor designed to meet the exacting demands of modern astrophotographers. Wit...
View full detailsWilliam Optics Guide Star 61
William OpticsWilliam Optics Guide Star 61 Designed exclusively for high-quality imaging and precision guiding. Featuring the acclaimed FPL53 ED doublet lens, id...
View full detailsWilliam Optics Dual side Dovetail Plate
William OpticsWilliam Optics Dual side Dovetail Plate Vixen-style & Arca Swiss Type In the Box Selected length and color of Dual side Dovetail Plate Warranty...
View full detailsWilliam Optics Cat 91 WIFD Refractor (T-C-91)
William OpticsWilliam Optics Cat 91 WIFD Step up your astrophotography game with the William Optics RedCat 91, an advanced apochromatic refractor tailored for fu...
View full detailsWilliam Optics Cat Eyes Binoculars (B-2X42-RD)
William OpticsWilliam Optics Cat Eyes Binoculars Discover a New Way of Seeing The Cat Eyes binoculars are designed for immersive wide-angle viewing like never be...
View full detailsWilliam Optics Mighty-Cat 71 · 30th Anniversary Limited Edition (T-MC-71RD-30A)
William Optics4.0 / 5.0
1 Review
William Optics Mighty-Cat 71 · 30th Anniversary Limited Edition The William Optics Mighty Cat 71 · 30 Years Anniversary Limited Edition is a ground...
View full detailsWilliam Optics Cat Series Saddle Handle Bar (HCRC)
William Optics5.0 / 5.0
2 Reviews
William Optics Cat Series Saddle Handle Bar The William Optics Cat Series Saddle Handle Bar is a Vixen type saddle handle-bar for our uniguide or o...
View full detailsWilliam Optics iOptron Skyguider Pro Dec adapter & Vixen style Clamp
William OpticsWilliam Optics iOptron Skyguider Pro Dec adapter & Vixen style Clamp weight:370g In the Box SP90 Saddle Plate for Vixen Dovetails iOptr...
View full detailsWilliam Optics Redcat 61 WIFD F/4.9 Petzval Refractor (T-C-61RD)
William OpticsWilliam Optics Redcat 61 WIFD F/4.9 Petzval Refractor Introducing the Redcat 61 Astrograph f/4.9, a masterpiece of precision engineering. With its ...
View full detailsWilliam Optics iOptron Skyguider Pro Dec adapter (M-IOPSG-SPM)
William Optics5.0 / 5.0
1 Review
William Optics iOptron Skyguider Pro Dec adapter In the Box William Optics iOptron Skyguider Pro Dec adapter Warranty & Manuals Willia...
View full detailsWilliam Optics High Latitude Vixen Base Mount with Extension Bar for iOptron Skyguider Pro (YG-IO-SG01H-RD-P)
William Optics5.0 / 5.0
1 Review
William Optics High Latitude Vixen Base Mount with Extension Bar for iOptron Skyguider Pro 100% precision CNC made .It’s big upgrade for the sta...
View full detailsWilliam Optics Flattener FLAT68III (P-FLAT68III)
William OpticsWilliam Optics Flattener FLAT68III The William Optics Flattener 68III was made for 6 -7.5 F ratio refractors. This high-quality flattener has been ...
View full detailsWilliam Optics Fluorostar 91 f/5.9 Triplet Refractor (FLT-91)
William OpticsWilliam Optics Fluorostar 91 The FLT 91 is the perfect Apochromatic refractor for visual and photographic astronomers demanding excellence in a mid...
View full detailsWilliam Optics M63 to M48 Photo Adapter (P-PAM63-48)
William OpticsWilliam Optics M63 to M48 Photo Adapter Technical Specifications Weight:185g In the Box William Optics M63 to M48 Photo adapter Warranty &...
View full detailsWilliam Optics Pleiades 181 APO F/5.5 WIFD (T-P-181RD)
William OpticsWilliam Optics Pleiades 181 APO F/5.5 WIFD Elevate your stargazing and astrophotography experience with the newly launched Pleiades 181 by William ...
View full detailsWilliam Optics Gran Turismo 71 Triplet + FLAT6AIII Bundle
William OpticsWilliam Optics Gran Turismo 71 Triplet APO f/5.9 + FLAT6AIII Bundle Technical Specifications Aperture 71mm Focal Length 419mm Fo...
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