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.
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William Optics Red Dot finder Kit with Vixen Style Mounting Base (M-RDF-P-VB)
William Optics Red Dot finder Kit with Vixen Style Mounting Base (M-RDF-P-VB)
William Optics4.0 / 5.0
1 Review
William Optics Red dot finder Kit with Vixen Style Mounting Base This very practical Red Dot Finder (R.D.F.) comes with a handy, quick -release bra...
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William Optics Slide-Base 50mm Guiding Rings with Adjustment Screws (M-GR50SL)
William Optics Slide-Base 50mm Guiding Rings with Adjustment Screws (M-GR50SL)
William OpticsWilliam Optics Slide-base 50mm Guiding Rings with Adjustment Screws Weight:260g In the Box William Optics Slide-Base 50mm Guiding Rings 6 x Adju...
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 48mm T mount for Fuji FX (TM-FJ-X-M48)
William OpticsWilliam 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...
View full detailsWilliam Optics Slide-Base UniGuide 32mm Scope
William OpticsWilliam Optics Slide-Base UniGuide 32mm Scope Enhance your astrophotography setup with the William Optics UniGuide 32mm f/3.75, a compact and ...
View full detailsWilliam Optics 48mm T mount for Canon EOS (TM-CN-EOS-M48)
William Optics5.0 / 5.0
1 Review
William Optics 48mm T mount for Canon EOS In the Box William Optics 48mm T mount for Canon EOS Warranty & Manuals William Optics 2-Yea...
View full detailsWilliam Optics 48mm T mount for Nikon F (TM-NK-F-M48)
William OpticsWilliam Optics 48mm T mount for Nikon F This high precision T-Mount has 48mm threads with outer hard black color anodizing and its made from High q...
View full detailsWilliam Optics Saddle Plate for Vixen-style Dovetail Plate - 90mm (M-SP90RC-RD)
William OpticsWilliam Optics Saddle Plate for Vixen-style Dovetail Plate Weight:230g This William Optics saddle plate is designed to accept Vixen-style dovetail...
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 Micro 4/3 48mm T mount for Olympus - Space Gray (TM-MFT-M48)
William OpticsWilliam 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...
View full detailsWilliam Optics 48mm T mount for Canon Mirrorless R Camera (TM-CN-EOSR-M48)
William OpticsWilliam Optics 48mm T mount for Canon Mirrorless R Camera In the Box William Optics 48mm T mount for Canon Mirrorless R Camera Warran...
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 Saddle Vixen Style Mounting Base (BAFM-ST001)
William Optics5.0 / 5.0
1 Review
William Optics Saddle Vixen Style Mounting Base In the Box William Optics Saddle Vixen Style Mounting Base Two Mounting Screws Warranty &...
View full detailsWilliam Optics UniGuide 50mm Slide-Base Guide Scope
William OpticsWilliam Optics UniGuide 50mm Slide-Base Guide Scope Elevate your astrophotography with the William Optics UniGuide 50mm f/4.0, designed for precisi...
View full detailsWilliam 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 90° 1.25" Erect Prism (D-EP90-125II)
William OpticsWilliam 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...
View full detailsWilliam Optics 0.8x Flattener/Reducer for Fluorostar 91 (P-FLAT6AIII-M92)
William Optics5.0 / 5.0
1 Review
William Optics 0.8x Flattener/Reducer Flat6AIII Special Edition For Fluorostar 91 All New Adjustable Flat6AIII with M92 thread adapter for use wi...
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 Longer Adjusting Adapter for FLAT68III, FLAT7A (AD-M80-45-M48)
William OpticsWilliam Optics Longer Adjusting Adapter for FLAT68III, FLAT7A This adjustable adapter offers a convenient, efficient way to upgrade your WO diagona...
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 detailsWilliiam Optics 2x Barlow nosepiece for Binoviewer (E-BINO-B2)
William OpticsWilliiam Optics 2x Barlow nosepiece for Binoviewer This 2-power nose piece barlow makes it easier to focus with most telescope. It can be screwed o...
View full detailsWilliam Optics 1.25" DURA BRIGHT Dielectric Diagonal (D-125D-C-DB)
William OpticsWilliam 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 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 M48 Push-in Nosepiece for WO 2" Diagonals (WD-DIG2A)
William OpticsWilliam Optics M48 Push-in Nosepiece for WO 2" Diagonals Special Reduced Price ! Take advantage of this high quality adapter nose piece for almost...
View full detailsWilliam Optics Super high precision COPPER T-mount for Nikon full frame (YE-TR-BR48-N)
William OpticsSuper high precision COPPER T-mount for Nikon full frame T-mount for Nikon full-frame camera copper version. Made from high quality copper materia...
View full detailsWilliam Optics 2" to 1.25" RotoLock Eyepiece Adapter
William OpticsWilliam Optics 2" to 1.25" RotoLock Eyepiece Adapter The new RotoLock series of adapters from William Optics may well set the "gold' standard for ...
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 SCT to 1.25" RotoLock Visual Back Adapter (F-ROTO-A2-125-SCT-TA)
William OpticsWilliam Optics SCT to 1.25" RotoLock Visual Back Adapter The new RotoLock series of adapters from William Optics may well set the "gold' standard ...
View full detailsWilliam Optics V Series 290mm Dovetail Plate (M-PV-LII-RD)
William OpticsWilliam Optics V Series Dovetail Plate William Optics' new Dovetail Plate expands your options: you can now choose a fully-anodized WO product to m...
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 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 Flattener 1x for GT 71/81 (P-FLAT-GT)
William OpticsWilliam Optics Flattener 1x for GT 71/81 The William Optics FLAT GT is a high-performance 1.0x field flattener designed for the Gran Turismo 71 and...
View full detailsOptolong Night Sky H-Alpha filter (IR-Pass 650nm)
OptolongOptolong Night Sky H-Alpha filter Night Sky H-Alpha filter (IR Pass 650nm) with 50% transition from blocking to passing at about 640nm and 95% or a...
View full detailsAskar 103APO 103mm F/6.8 Triplet Refractor Telescope (103APO)
AskarAskar 103APO 103mm F/6.8 Triplet Refractor Telescope After a long preparation, we launch the new Askar 103APO, dedicated to enabling more amateurs ...
View full detailsAskar FRA400C 72mm f/5.6 Quintuplet ED APO (FRA400C)
AskarAskar FRA400C 72mm f/5.6 Quintuplet ED APO The refreshed, budget-friendly iteration of FRA400, is suitable for astrophotography, daily photography,...
View full detailsAskar SQA70 f/4.8 Quintuplet APO (SQA70)
AskarAskar SQA70 f/4.8 Quintuplet APO Super Quintuplet Astrograph. High-quality quintuplet air-spaced ED glass Petzval Astrograph. EXCELLENT STAR PER...
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