Baader 2" BBHS Sitall Zenith Mirror with 1/10 lambda surface

This zenith mirror is checked before shipping on our optical bench.

Baader 2" BBHS sitall zenith mirror with 1/10 lambda surface

Ultimate 2"zenith mirror with BBHS silver coating and best mechanics from Baader

♦ Sitall glass ceramic - no expansion coefficient
♦ 1/10 lambda surface quality
♦ BBHS reflective coating - Broadband hard silver coating with dielectric protection coating
♦ 140 coating layers for a 99% reflection - scratch-resistant and lifelong
♦ Absolutely plan
♦ 2" clamp with click-lock - clamps precisely and stably - as screwed

One of the best 2" zenith mirrors we know

This Baader Zenit mirror combines a perfect look and optimal mechanics - ideal for amateur astronomers who do not want to compromise. You will no longer see any difference to straightforward observation.

BBHS silver coating

BBHS Broadband Hard Silver Coating with dielectric coating ... This coating provides reflection WITHOUT ANY REFLECTION LOSS FROM 400 nm to 2000 nm. You really need the best to choose this zenith mirror.

Silver had the stigma of starting and aging quickly, which was correct in the past. This is no longer the case with the hard silver coating and the dielectric coating. Durability is no longer an issue as with other Baader coatings. According to Baader, the viewing experience of the silver coating is the absolute best and can only be compared with the straightforward vision without a zenith mirror.

The ClickLock clamp

The eyepiece-side 2" accessory is clamped over the entire surface, unlike clamping screws, the eyepiece or adapter is centered exactly on the optical axis and not pressed against the opposite surface.

Telescopic side connection: 2" socket with filter thread
Eyepiece side connection: 2" with click-lock clamping - surface clamping on the optical axis
Reflection: By silver coating over 99% from 400nm to 2000nm
Optically effective length: 124mm