Baader Planetarium Diagonals

his 90º 2" Diagonal Prism features Baader's exclusive BBHS® (Broad Band Hard Silver) reflection coatings.

The Baader Planetarium 2" Star Diagonal is a quality piece of astronomical equipment, from the finely machined aluminum housing to the Zeiss prism.

Baader's BBHS dielectric coatings deliver high reflectivity across a wider visual spectrum, resulting in improved color contrasts when compared to aluminum and all-dielectric mirrors.

Baader's dielectric coatings deliver an amazingly high 99% photo-visual reflectivity along with an extremely hard durable surface.

Baader Planetarium produces what we think is easily the finest amici prism star diagonal available today

With their ground-breaking introduction several years ago of the all-dielectric 2" Maxbright star diagonal, Baader Planetarium brought mirror star diagonals into the 21st century.

The Amici Prism has long been favored as the best choice for producing correctly oriented images in refractors and cassegrain type telescopes.

The mid-size, flexibility, and cost of the T-2 Maxbright Mirror Diagonal make this the ultimate diagonal for high power planetary viewing, or in systems where back-focus or space is limited and a full aperture 2" diagonal will not work or is not flexible

The Baader Planetarium T-2 Prism Star Diagonal is easily the finest prism star diagonal available today.

Baader T2 BBHS (Broadband Hard-Coated Silver) Mirror Diagonal uses a proprietary process to dielectrically coat and thus protect the silver, giving you the best of both worlds.

Improving workflow, especially during astrophotography is the goal set out for the BFM II. This is not just a simple flip mirror but much more, as there are three ports to be put into action.

2" SC-thread and 2"/1¼"-reducer

The Baader Planetarium T-2 Prism Star Diagonal is easily the finest prism star diagonal available today.

One of the main features of Baader T2 diagonals is the large free aperture they offer

Off Axis Guider (BFM-OAG) for direct connection to the Baader FlipMirror II Star Diagonal (#2458055, € 195,-)

Gently rotating the knurled lever of the 2" ClickLock Adapter by 20 degrees using only your fingers is enough to firmly clamp any 2" accessory

Baader Planetarium Click-Lock Eyepiece Clamp 1.25/T-2

The Baader Planetarium Click-Lock Eyepiece Clamp (# T2-08) is a precision clamping eyepiece holder that enables you to insert your eyepieces or standard 1 ¼” accessories anywhere within the ASTRO T-2 System™, or for upgrading the stock holder supplied wit

Much larger prism than other so-called "Erecting prisms"

The Baader SCT Lockring allows for enhanced flexibility in the placement of your Baader Maxbright Diagonal when affixed to your SCT Telescope

Baader M55a / M68a (Zeiss) adapter for all Baader 2" mirror and prism star diagonals, for direct connection to the M68 Zeiss thread