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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.

Baader Diagonals

Baader Planetarium diagonals turn the light path 90° or 45° for a comfortable viewing position. Mirror diagonals with BBHS dielectric coatings and Zeiss-spec prism diagonals cover 1.25", 2" and T-2 formats, with ClickLock clamps on several models.

Amici prism diagonals give a correct, unreversed image for terrestrial and astronomical use, and the FlipMirror II lets you switch between an eyepiece and a camera. M68 and adjustable star diagonal versions suit larger refractors.

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$347.00 - $347.00
$347.00
$347.00 - $347.00
$347.00

Baader Mirror Diagonal - 2" ClickLock

BAA-2956100

2-inch Barrel Format Baader ClickLock Eyepiece Clamp High-Reflectivity Mirror Design Precision Machined Body Self-Centering Clamp Mechanism Des...

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$347.00 - $347.00
$347.00
$347.00 - $347.00
$347.00
$349.00 - $349.00
$349.00
$349.00 - $349.00
$349.00

Baader FlipMirror II Star Diagonal

BAA-2458055

Instantly switch between three different instrument ports Straight-through port for primary camera or spectrograph 90° mirrored port for visual ob...

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$349.00 - $349.00
$349.00
$349.00 - $349.00
$349.00
$181.00 - $181.00
$181.00
$181.00 - $181.00
$181.00

Baader 90° Prism Diagonal w/ 32mm Prism - T-2

BAA-2456005
1 in stock

90° comfortable viewing angle Large 32mm prism for full field illumination Baader T-2 thread system for modular connections Maxbright-series prism...

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$181.00 - $181.00
$181.00
$181.00 - $181.00
$181.00
$584.00 - $584.00
$584.00
$584.00 - $584.00
$584.00

Baader Mirror Diagonal w/ BBHS Coating - 2" ClickLock

BAA-2456115
Only 1 left!

2" BBHS star diagonal with 2" ClickLock terminal and black case. Provides greatest reflectance over most spectral range from 390 to 2000nm New inc...

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$584.00 - $584.00
$584.00
$584.00 - $584.00
$584.00
$335.00 - $335.00
$335.00
$335.00 - $335.00
$335.00

Baader Mirror Diagonal w/ BBHS Coating - T-2

BAA-2456103
1 in stock

BBHS® BroadBand Hard Silver Coating Protective Dielectric Overcoat Baader T-2 System Component Modular Threaded Connections Optimized for High Ref...

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$335.00 - $335.00
$335.00
$335.00 - $335.00
$335.00
$358.00 - $358.00
$358.00
$358.00 - $358.00
$358.00

Baader 90° Astro-Grade Amici Prism w/ BBHS Coating - T-2

BAA-2456130
1 in stock

90° comfortable viewing angle Amici prism design provides correctly oriented, erect images Features a full 1.25" clear aperture to prevent vignett...

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$358.00 - $358.00
$358.00
$358.00 - $358.00
$358.00
$559.00 - $559.00
$559.00
$559.00 - $559.00
$559.00

Baader BBHS Prism Adjustable Star Diagonal - 2"

BAA-2456118
1 in stock

Broad Band Hard Silver (BBHS®) Coated Prism 2-inch ClickLock® Self-Centering Eyepiece Clamp Fully User-Collimatable Prism Mount CNC-Machined Alumi...

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$559.00 - $559.00
$559.00
$559.00 - $559.00
$559.00
$335.00 - $335.00
$335.00
$335.00 - $335.00
$335.00

Baader 90° Erecting Prism Diagonal - 2"

BAA-2956152

Provides a fully erect, non-reversed image 90° viewing angle for comfortable observing 2" barrel for use with large focusers Includes a 2" to 1.25...

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$335.00 - $335.00
$335.00
$335.00 - $335.00
$335.00
$104.00 - $104.00
$104.00
$104.00 - $104.00
$104.00

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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$104.00 - $104.00
$104.00
$104.00 - $104.00
$104.00
$279.00 - $279.00
$279.00
$279.00 - $279.00
$279.00

Baader Star Diagonal Prism w/ Zeiss Spec Prism & BBHS Coating - T-2

BAA-2456095
1 in stock

Zeiss-Specification Right-Angle Prism Baader BBHS® (Broadband Hard Silver) Coatings T-2 (M42x0.75) Threads on Input and Output Faces Solid, All-Me...

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$279.00 - $279.00
$279.00
$279.00 - $279.00
$279.00
$217.00 - $217.00
$217.00
$217.00 - $217.00
$217.00

Baader 90° Zenith Prism Diagonal w/ 32mm Prism - 1.25"

BAA-2456005K
1 in stock

90° Zenith Prism Diagonal Oversized 32mm Prism 1.25" Barrel Format Baader T-2 System Threads Includes 1.25" Eyepiece Holder & Nosepiece Des...

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$217.00 - $217.00
$217.00
$217.00 - $217.00
$217.00
$806.00 - $806.00
$806.00
$806.00 - $806.00
$806.00

Baader 90° Astro-Grade Amici Prism w/ BBHS Coating - 2" ClickLock

BAA-2456120
1 in stock

Provides a fully corrected, non-reversed and non-inverted image Comfortable 90° viewing angle Full 2-inch clear aperture prevents vignetting Baade...

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$806.00 - $806.00
$806.00
$806.00 - $806.00
$806.00
Baader Planetarium M68 ClickLock® Mirror Diagonal
$358.00 - $358.00
$358.00
$358.00 - $358.00
$358.00

Baader Planetarium M68 ClickLock® Mirror Diagonal

BAA-2956100Z

2-inch ClickLock Eyepiece Clamp M68 (Zeiss) Threaded Telescope Connection All-Metal Mirror Diagonal Housing Replaces Standard Slip-Fit Diagonals E...

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$358.00 - $358.00
$358.00
$358.00 - $358.00
$358.00
Baader Planetarium 2" BBHS® Mirror – Adjustable Star Diagonal
$579.00 - $579.00
$579.00
$579.00 - $579.00
$579.00

Baader Planetarium 2" BBHS® Mirror – Adjustable Star Diagonal

BAA-2456105
1 in stock

BBHS® Broad Band Hard Silver coating for maximum spectral range and color fidelity User-collimatable mirror in a CNC-machined aluminum housing The...

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$579.00 - $579.00
$579.00
$579.00 - $579.00
$579.00
$279.00 - $279.00
$279.00
$279.00 - $279.00
$279.00

Baader Maxbright Mirror Diagonal - T-2

BAA-2456100
1 in stock

Features Baader's T-2 System threads for full modularity High-reflectivity Maxbright mirror for bright, high-contrast views All-metal housing for ...

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$279.00 - $279.00
$279.00
$279.00 - $279.00
$279.00
$268.00 - $268.00
$268.00
$268.00 - $268.00
$268.00

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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$268.00 - $268.00
$268.00
$268.00 - $268.00
$268.00