Discontinued Products
Products no longer in production. This collection exists as a reference — for identifying what you own, checking what a discontinued model was compatible with, and finding out whether parts and service are still available. Being discontinued does not mean unsupported, and a great deal of excellent astronomy equipment is no longer made.
If you own something listed here and need a part, an adapter or a repair, contact us. We can frequently source service parts through dealer channels that are not publicly listed.
Filters
Antlia 2.8nm Narrowband H-alpha Ultra Filter - Discontinued
Antlia H-alpha Pro narrowband filter optimizes the FWHM (full width half maximum) to 2.8nm bandpass. As the bandwidth becomes narrower, the 2.8nm ...
View full detailsAntlia 2.8nm Narrowband OIII Ultra Filter - Discontinued
Antlia OIII Ultra narrowband filter optimizes the FWHM (full width half maximum) to 2.8nm bandpass. As the bandwidth becomes narrower, the 2.8nm U...
View full detailsAntlia 2.8nm Narrowband SII Ultra Filter - Discontinued
Antlia SII Ultra narrowband filter optimizes the FWHM (full width half maximum) to 2.8nm bandpass. As the bandwidth becomes narrower, the 2.8nm Ul...
View full details
Sold out
Baader Star Diagonal Prism w/ Zeiss Spec Prism & BBHS Coating - 2" ClickLock - Discontinued
Baader Star Diagonal Prism w/ Zeiss Spec Prism & BBHS Coating - 2" ClickLock - Discontinued
2" Star Diagonal with Zeiss-Specification Prism BaK4 Glass Construction Proprietary BBHS (Broad-Band Hard-Silver) Coatings Baader 2" ClickLock Eye...
View full detailsCelestron Hummingbird 9-27x56mm Micro Spotting Scope - Discontinued
Magnification: 9-27x Zoom Objective Lens: 56mm Diameter Weight: 20.8 oz (590 g) Close Focus: 9.8 ft (3 m) Protection: Waterproof & Nitrog...
View full detailsCelestron Origin Intelligent Home Observatory - Discontinued
Stargazing and Astroimaging Redefined: Celestron Origin is an intelligent, all-in-one home observatory that captures stunning views of faint, de...
View full detailsExplore One Aurora II Flat Black 114mm Slow Motion AZ Mount Telescope - Discontinued
114mm (4.5") Newtonian Reflector Optics 500mm Focal Length Alt-Azimuth Mount with Slow-Motion Controls Includes Plossl Eyepieces for 20x and 52x M...
View full detailsExplore Scientific - Generation II - 10" Truss Tube Dobsonian Telescope - Discontinued
This is a Generation II telescope. All updates have been performed on this telescope. No telescope type has changed the hobby quite as much as the ...
View full detailsExplore Scientific - Generation II - 12" Truss Tube Dobsonian Telescope - Discontinued
This is a Generation II telescope. All updates have been performed on this telescope. No telescope type has changed the hobby quite as much as the ...
View full detailsExplore Scientific - Generation II - 16" Truss Tube Dobsonian Telescope - Discontinued
This is a Generation II telescope. All updates have been performed on this telescope. No telescope type has changed the hobby quite as much as the ...
View full detailsExplore Scientific - Generation II - 20" Truss Tube Dobsonian Telescope - Discontinued
The ideal workhorse for the deep sky observers, the Explore Scientific 20-inch f/3.6 Truss-Tube Dobsonian is our largest aperture telescope. The 50...
View full detailsExplore Scientific 12V Car Adapter for EXOS2GT - Discontinued
Powers Explore Scientific EXOS2GT Mounts Connects to Standard 12V DC Power Supplies Center-Positive Polarity Extended Cord Length for Field Flexib...
View full detailsExplore Scientific 12V Universal AC Power Supply for EXOS-2GT Mount - Discontinued
Provides continuous 12V power to the EXOS-2GT mount Connects to any standard AC wall outlet Replaces the need for the 8 D-cell battery pack for ho...
View full details
Sold out
Explore Scientific 134mm Newtonian Reflector Telescope with Equatorial Mount - Discontinued
Explore Scientific 134mm Newtonian Reflector Telescope with Equatorial Mount - Discontinued
134mm (5.3") Newtonian Reflector Optics 650mm Focal Length Fast f/4.9 Focal Ratio German Equatorial Mount with Slow-Motion Controls Includes 25mm ...
View full detailsExplore Scientific 2" AR Series Focuser - Discontinued
2" Focuser Drawtube Dual-Speed Coarse and Micro-Focusing Knobs Supports 1.25" Accessories with Optional Adapter Adjustable Drawtube Tension Contro...
View full detailsExplore Scientific 2" Comet Hunter Focuser - Includes Extension Tubes - Discontinued
Explore Scientific™ David H. Levy Comet Hunter Telescope is rich in quality components. Among those is the 2? Comet Hunter Focuser, which also can ...
View full detailsExplore Scientific 2.5 Hex Focuser - Discontinued
Description APO EDT Series Crayford Style Focuser Item Number FOC25H Weight 1.5lb; .68kg Diameter 2.5" Length 104.8mm
Explore Scientific 70° 25mm Eyepiece - 2" - Discontinued
The new eyepiece design represent a major advance compared to the original Plössl and Super-Plössl design. The five element design features tack sh...
View full detailsExplore Scientific AR102 Doublet Go-To Combo - Discontinued
The Explore Scientific AR Air-Spaced Doublet Series telescopes are classic air-spaced, crown-and-flint, doublet achromatic f/6.5 refractors with a ...
View full detailsExplore Scientific AR127mm Refractor with Twilight I Package Deal - Discontinued
The Explore Scientific AR Series telescopes are classic air-spaced, crown-and-flint, doublet achromatic f/6.5 refractors with a superior-class opti...
View full detailsExplore Scientific Compact Radio Controlled Alarm Clock - Discontinued
Radio-controlled for automatic time accuracy Displays current indoor temperature Backlit screen for easy nighttime viewing Dual alarms for separat...
View full detailsExplore Scientific Cradle for Carbon Fiber 102mm - Discontinued
Inside Diameter: 4.65" - 4.82" (118.11mm - 122.43mm) Dovetail Plate Length: 8" (203mm) Construction: Extruded Aluminum with Hinged Rings Acces...
View full detailsExplore Scientific Cradle for Carbon Fiber ED152mm - Discontinued
Explore Scientific cradle assemblies fit their appointed telescope OTA snuggly, yet protect the delicate surface of the tube. The hinged ring syste...
View full detailsExplore Scientific Cradle for Comet Hunter 152mm - Discontinued
Explore Scientific cradle assemblies fit their appointed telescope OTA snuggly, yet protect the delicate surface of the tube. The hinged ring syste...
View full detailsOwning Discontinued Equipment
Astronomy equipment has a long service life, and a discontinued model is often mechanically identical to something still in production.
- Parts availability: Manufacturers often maintain service stock well beyond a product's sales life and supply it to authorized dealers on request.
- Common failure parts: Thumbscrews, springs, gears and cables are the items that typically fail, and many are shared across product generations.
- Adapters and compatibility: Older equipment frequently uses the same thread standards as current products, so modern accessories often fit.
- Repair rather than replacement: Mechanical assemblies can often be repaired or refurbished in-house even when a factory part no longer exists.
- Used market: Discontinued models remain available second hand, and many are excellent value for their capability.
- Successor identification: If a repair is not economic, we can identify the current model that replaced yours and what changed.
Why Choose David Astro for Discontinued Equipment Support
Being an authorized dealer matters most for products that are no longer sold.
- Dealer channel parts access: We can request service parts that never appear in public catalogues, which is often the only route to a specific component.
- Identification from photographs: Send us a picture and we will identify the model and the part, since documentation for older equipment is frequently unavailable.
- In-house repair: Where no part exists, we can often repair or fabricate a working solution rather than declare the equipment finished.
- Compatibility advice: We will tell you which current accessories fit older equipment, which is more often than people expect.
- Ships from Canada: Parts and accessories delivered domestically without duties or brokerage fees.
Discontinued Products in Canada — Frequently Asked Questions
- Can I still get parts for a discontinued product?
- Often yes. Manufacturers keep service stock beyond a product's sales life and supply it to dealers. Tell us the model and what you need and we will check availability.
- Is old astronomy equipment still worth using?
- Frequently. Optics that are cared for hold their performance for decades, and mechanically sound mounts often outperform newer budget ones. Electronics are what usually date first.
- Will modern accessories fit older equipment?
- More often than expected, since thread standards like M42, M48 and SCT have been stable for a long time. Tell us the equipment and we will confirm.
- What if no part is available?
- We can often repair the assembly or fabricate a functional replacement in-house. Where that is not economic, we will identify the current equivalent and what has changed.
Own something no longer made?
Send us a photo and the model and we will find parts or repair it. Canadian stock and in-house service.