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Baader T-2 Maxbright Mirror Diagonal (Sitall-ceramic mirror)

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0.50 kg
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including VAT 20.00 % ( £26.67 )

T-2 Maxbright Mirror Diagonal (Sital-ceramic mirror/140 coating layers), w.male/female T-2 thread / solid metal body

Sital-ceramic mirror with 140 coating layers

Images are for demonstration purposes only. Adapters, nosepieces, telescope etc are not included...


  • 1¼ "Maxbright Universal Star Diagonal
  • Sitall mirror material (glass ceramic with zero expansion coefficient), 1/10 lambda surface finish
  • 140 coating layers for a 99% reflectance
  • Scratch-proof, lifetime durable and absolutely flat!


Manufacturer Baader Planetarium
SKU (#) 2456100
Weight (kg) 0.18
Optical Design Mirror Diagonal
Inner Connection (lens sided) Thread, T-2 (M42 x 0,75)
Inner Connection (eyepiece/-camera-sided) Thread, M34
Outer Connection (eyepiece/-camera-sided) Thread, T-2 (M42 x 0,75)
Reflection surface Dielectrically coated
Image Orientation Erect image, Mirror inverted
Optical tube length 43
Clamping System no clamp
Deflection angle 90°
Inner Diameter / Clear Aperture (mm) 34

One of the features of the T-2 diagonals - be it prisms or mirrors - is the large free aperture and the flexibillity to directly adapt onto almost any telescope system - without the bottleneck of a 1 1/4" barrel size which may cause vignetting in long focal length 1 1/4" eyepieces or when working with a bino viewer on top of the diagonal. Exactly this is the reason why we offer the body of all our T-2 System diagonals without adaptors ( Of course - it can be adapted just alike all the other diagonals by using our standard T-2 / 1 1/4" nose piece #14, but then some of it's beauty [clear aperture !!] is left unused..).

The telescope side of all our T-2 diagonals accepts an entire armada of Baader-adapters, be it for 1 1/4" or 2"focusers, be it for a Celestron OTA 2" thread or an original M44 Zeiss thread, be it vor Vixen OTA's or russian MAK's - or whatsoever ( all to be found on our Astro T-2 System drawing ).On the eyepiece side many people put only our quick change ring #6, in order to mount the Mark V binocular viewer instead of an eyepiece, in order to achieve the shortest possible backfocus distance between telescope and binocular viewer - alternatively mount the 1 1/4" CLICKLOCK- eyepiece clamp, for the quickest clamping action in the industry.

Our three T-2 diagonals all were based on the design of the famous Zeiss M44 Star Diagonal which featured the same versatillity with the body itself being adaptable onto almost everything within the Zeiss M44 system of telescope accessories. We try to provide the same versatillity within our brandmarked ASTRO T-2 System(TM).



BBaa-28-2456100#01Aaa-28-2456100#01A lock, click-lock, clicklock, cliclock, clic lock, clic-lock, cliklock, clik-lock, clik lock

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