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IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.
IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.

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Baader Planetarium

Baader Planetarium

Baader Planetarium is renowned for engineering high-quality astronomical optics, filters, and adapters. From narrowband and broadband imaging filters to premium eyepieces and a comprehensive selection of adapters, Baader products are designed for optical precision, flexibility, and consistent performance. At David Astro, we provide expert guidance to integrate Baader components into your imaging train or visual setup, ensuring reliable, high-quality results.

Filters

Original price $52.00 - Original price $52.00
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Current price $52.00

Baader 3" 60mm Losmandy Rider Clamp

BAA-2451575

Fits standard 3-inch Losmandy D-style dovetail bars Provides a 60mm wide mounting platform Securely holds heavy accessories like guide scopes and ...

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Original price $52.00 - Original price $52.00
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Current price $52.00
Original price $100.00 - Original price $100.00
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$100.00
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Current price $100.00

Baader Complete T-2 Changer System

BAA-2456321
2 in stock

Enables rapid swapping of T-2 threaded accessories Maintains precise rotational alignment between changes Secure locking mechanism prevents tilt a...

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Original price $100.00 - Original price $100.00
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$100.00
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Current price $100.00
Original price $429.00 - Original price $429.00
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$429.00
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Current price $429.00

Baader Stronghold Tangent Mount Assembly - Black

BAA-2450310S

Precision tangent arm assembly for fine pointing adjustments Designed for securely mounting finders, guidescopes, and telephoto lenses Engineered ...

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Original price $429.00 - Original price $429.00
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Current price $429.00
Original price $49.00 - Original price $49.00
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$49.00
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Current price $49.00

Baader Ultrashort Clamp - 1.25"/T-2

BAA-2458121

Connects 1.25" accessories to T-2 threads Ultrashort design minimizes optical path length Ideal for complex imaging trains with limited back focus...

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Original price $49.00 - Original price $49.00
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Current price $49.00
Original price $134.00 - Original price $134.00
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$134.00
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Current price $134.00

Baader Ultrashort Eyepiece Clamp - 2"/M68x1(M)/M60x0.75(M)

BAA-2458196

Securely holds 2" eyepieces and accessories Ultra-low profile design minimizes backfocus consumption Features male M68x1 Zeiss-system threads on b...

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Original price $134.00 - Original price $134.00
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Current price $134.00
Original price $62.00 - Original price $62.00
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$62.00
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Baader 1" C-Mount Adapter w/ 1.25" Nosepiece - 18mm Long

BAA-2958515

Connects C-Mount (1") cameras to 1.25" focusers Adds a fixed 18mm of optical length Internal threads accept standard 1.25" mounted filters Include...

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Original price $62.00 - Original price $62.00
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Original price $139.00 - Original price $139.00
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Current price $139.00

Baader 2" Four-in-One Clamp Adapter M68 (Zeiss)/2.7" (A.P.)/M60 (Vixen)/M56 (Synta)

BAA-2458190
1 in stock

Adapts four major large-format focusers to a 2" clamp Female threads: M68 (Zeiss), 2.7" (Astro-Physics) Female threads: M60 (Vixen), M56 (Synta/Sk...

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Original price $139.00 - Original price $139.00
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Current price $139.00
Original price $71.00 - Original price $71.00
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$71.00
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Current price $71.00

Baader 2" Locking Ring for SCTs 8"/9.25"/11"/14"

BAA-2458270
1 in stock

Direct-threads to the rear cell of Schmidt-Cassegrain telescopes Compatible with 8", 9.25", 11", and 14" SCT models Designed for Baader 2" zenith ...

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Original price $71.00 - Original price $71.00
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Original price $289.00 - Original price $289.00
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Baader 2" Newton 1.7X Glasspath and Coma Corrector

BAA-2456301

2" Glasspathcorrector®Factor 1.7 for Newtons - at full aperture with integrated Coma-Corrector. Includes T-2 change ring (#2456320) for adaptation...

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Original price $289.00 - Original price $289.00
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Original price $55.00 - Original price $55.00
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Baader 2" Nosepiece to T-2/M48a – with Safety-Kerf

BAA-2458130
1 in stock

Connects T-2 and M48 accessories to a standard 2-inch focuser Features a modern, shallow T-2 thread depth for new cameras Dual male threads: T-2 (...

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Original price $55.00 - Original price $55.00
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Original price $230.00 - Original price $230.00
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$230.00
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Baader 2" Refractor/SCT 1.8X Glasspath Corrector

BAA-2456305

2" Glasspathcorrector®Factor 1.8 for Refractors and Schmidt Cassegrains - at full aperture. Suitable to insert into the Baader Maxbright and Mark ...

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Original price $230.00 - Original price $230.00
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Original price $43.00 - Original price $43.00
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$43.00
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Current price $43.00

Baader 2"/2" Inverter Ring

BAA-2958243
1 in stock

2-inch Female Thread (Both Sides) Couples Accessories with Male 2-inch Threads Solves Incompatible Gender Connections Ensures a Rigid, Threaded Li...

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Original price $43.00 - Original price $43.00
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Original price $48.00 - Original price $48.00
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$48.00
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Baader 2"/2" Inverter Ring w/ 48mm Filter Thread

BAA-1508020
1 in stock

Creates a direct 2" male thread connection on Baader diagonals Replaces the standard 2" ClickLock eyepiece clamp Solves critical backfocus/in-trav...

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Original price $48.00 - Original price $48.00
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Original price $81.00 - Original price $81.00
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$81.00
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Baader 2.25x Q-Barlow - 1.25"

BAA-2956185

Provides 2.25x magnification in its standard 1.25" housing Lens element unscrews for ~1.3x magnification when threaded directly into an eyepiece F...

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Original price $81.00 - Original price $81.00
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Original price $266.00 - Original price $266.00
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Baader 2x VIP Modular Barlow - 1.25"

BAA-2406101

Modular 2x Barlow Design 1.25" Barrel and Filter Thread Compatibility Integrated T-2 Threads for Imaging Designed for Full-Frame Sensor Illuminati...

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Original price $266.00 - Original price $266.00
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Current price $266.00
Original price $946.00 - Original price $2,105.00
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Baader 3.5/4nm f/2 Ultra-Highspeed Filter Set - CMOS-Optimized H-alpha/O-III/S-II

Options available

3.5nm (H-alpha, S-II) and 4nm (O-III) Bandpasses Optimized for f/2 Ultra-Highspeed Optical Systems CMOS-Optimized with Reflex-Blocker™ Coatings Pr...

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Original price $946.00 - Original price $2,105.00
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Original price $929.00 - Original price $1,982.00
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Current price $929.00

Baader 3.5nm / 4nm Narrowband Filter Set - CMOS-Optimized H-alpha/O-III/S-II

Options available
2 variants in stock

3-Filter Set: H-alpha (3.5nm), O-III (4nm), S-II (3.5nm) Ultra-Narrow Bandpasses for Maximum Image Contrast CMOS-Optimized to Eliminate Halos and ...

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Original price $929.00 - Original price $1,982.00
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Original price $17.00 - Original price $17.00
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$17.00
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Baader 3D-Printed Ring-Wrench for Pan EQ Clamps

BAA-2450071

Purpose-built for Baader Pan EQ clamps and the Stronghold Tangent Assembly Provides increased leverage for easy and secure tightening of clamping ...

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Original price $17.00 - Original price $17.00
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Original price $104.00 - Original price $104.00
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$104.00
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Baader 45° Amici Prism Diagonal w/ 24mm Clear Aperture - 1.25"

BAA-2956150

Provides a correctly oriented, erect image for terrestrial viewing Comfortable 45° viewing angle Full 24mm clear aperture prevents vignetting with...

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Original price $104.00 - Original price $104.00
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Original price $268.00 - Original price $268.00
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Baader 45° Amici Prism Diagonal 45° - 2" SCT Thread

BAA-2956151

Provides a fully corrected, upright, and non-reversed image Comfortable 45° viewing angle for terrestrial observation Attaches directly to 2" SCT ...

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Original price $268.00 - Original price $268.00
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Current price $268.00
Original price $283.00
Original price $283.00 - Original price $283.00
Original price $283.00
Current price $212.00
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Current price $212.00

Baader 4nm 1.25" Ultra-Narrowband OIII Filter - CMOS-Optimized (USED)

BAA-2961400-125-USED
Only 1 left!

In perfect condition, used Baader H-alpha / O-III / S-II Ultra-Narrowband (Narrowband) filter set - Premium Grade 3.5 / 4 nm half width (to harmo...

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Original price $283.00
Original price $283.00 - Original price $283.00
Original price $283.00
Current price $212.00
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Current price $212.00
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Original price $320.00 - Original price $692.00
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Current price $320.00

Baader 4nm Ultra-Narrowband OIII Filter - CMOS-Optimized

Options available
2 variants in stock

4nm Ultra-Narrowband OIII Bandpass Optimized for Modern CMOS Sensors Reflex-Blocker™ Hard Coatings to Prevent Halos Life-Coat™ Technology for Extr...

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Original price $320.00 - Original price $692.00
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Current price $320.00
Original price $193.00
Original price $193.00 - Original price $193.00
Original price $193.00
Current price $144.00
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Current price $144.00

Baader 6.5nm 36mm H-alpha Filter - CMOS-Optimized (OPEN BOX)

BAA-2961100-36-OPENBOX
Only 1 left!

Isolates the 656.3nm H-alpha emission line 6.5nm bandpass for high-contrast imaging 36mm unmounted format for filter wheels CMOS-optimized to supp...

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Original price $193.00
Original price $193.00 - Original price $193.00
Original price $193.00
Current price $144.00
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Current price $144.00
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Original price $548.00 - Original price $1,310.00
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$548.00 - $1,310.00
Current price $548.00

Baader 6.5nm f/2 Highspeed Filter Set - CMOS-Optimized H-alpha/O-III/S-II

Options available
1 variants in stock

Set of 3 Narrowband Filters: H-alpha, O-III, and S-II 6.5nm Bandpass for high-contrast imaging Optimized for f/2 to f/3.5 High-Speed Optical Syste...

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Original price $548.00 - Original price $1,310.00
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$548.00 - $1,310.00
Current price $548.00

Advanced Imaging Filters

Baader’s filters deliver high transmission with minimal optical distortion, suitable for both CCD/CMOS imaging and visual observation.

  • Narrowband Filters: Hα, OIII, SII for deep-sky emission line imaging.
  • Broadband LRGB Filters: Balanced transmission and accurate color reproduction.
  • Specialty Filters: Solar continuum, Calcium-K, and planetary enhancement filters.
  • Filter Drawers & Adapters: Designed for parfocality and minimal vignetting in complex imaging trains.

Adapters: The Most Comprehensive Selection

One of Baader’s standout strengths is their extensive range of adapters. With an unmatched selection of extension tubes, T-threads, spacers, and custom couplers, Baader allows precise integration of cameras, filter drawer, focusers, and optical accessories. This flexibility ensures:

  • Proper backfocus spacing for each camera and telescope combination.
  • Secure, stable connections between multiple optical components.
  • Parfocal alignment across filters and imaging devices.
  • Support for custom configurations and complex imaging trains.

Eyepieces and Visual Accessories

Baader also produces premium eyepieces and visual accessories that complement imaging setups:

  • Eyepieces: Wide-field and high-contrast designs for deep-sky and planetary observation.
  • Barlows & Focal Extenders: High-quality optics to increase effective focal length.
  • Diagonal Mirrors & Prisms: Minimal light loss with superior color fidelity.

Why Choose David Astro for Baader Planetarium

Selecting Baader components, especially adapters, requires understanding your optical train and backfocus requirements. David Astro provides:

  • Full Product Access: Baader optics, filters, and the widest range of adapters available.
  • Technical Guidance: Expert advice on filter selection, spacing, and system integration.
  • Hands-On Support: Practical tips from astrophotographers experienced with Baader products.
  • Fast Shipping: Reliable delivery across Canada, the USA, and worldwide.

We ensure your Baader equipment, including complex adapter setups, is configured for optimal imaging and observation performance.