
Baader SunDancer II Telecentric System TZ-4S
- Delivers a plane-parallel, achromatic beam of light with 36 mm diameter
- Designed especially for H-alpha and CaK subangstroem etalon filters
- Includes a ½" filter cell for the 2 nm block filter of the Baader SunDancer II H-alpha filter
- Can also be used in place of a Barlow lens, expands the telescope focal length by 4x
- BBAR (Broad-Band Anti-Reflection) coating
- Anti-reflective thread and blackened lens edges against reflections and for maximum contrast
- Image circle 36 mm, in a nominal in 97 mm from base of the T-2 thread
- 1¼" and 2" nosepiece with 1¼" filter thread, T-2 thread on camera side
- 12.5 mm (1/2") filter exchange tool included
- 5-year warranty if handled properly
Test review:
Baader Blogpost:
Field report: „Baader SunDancer II Telecentric System TZ-4S“
This entry was posted on July 11, 2023Last modified on September 27, 2023.
C2 Swan-Band Filter (15nm ) – O-III parallel

- Comet filter for the two brightest C2 emission lines at 511 and 514nm (called "Swan-Band") in the gas tail and gasplume of comets, respectively
- Blocks the adjacent OIII line, which does not predominantly occur in the tail of comets
- CMOS optimized for increased contrast
- Front-Reflex-Blocker™ hard coated and planeoptically polished – with sealed coating edges (Life-Coat™)
- Blackened edges all around
Test results with C2 Swan-Band Filter -->
Baader M54-System
– Extension tubes and Adapter for heavy loads –
We have completed a whole range of new adapters for our M54 system and are happy to present them to you herewith. A M54 filter and quick-change system, compatible with the entire Baader M54 system, is in preparation.
- Metal Dustcap with M54 female thread (#2958700 , € 30,-)
- Metal Dustcap with M54 male thread (#2958701 , € 30,-)
- M54 Metal Dustcap with S54a ring dovetail (#2958702 , € 30,-)
- M54 Extension Tube – 5 mm (#2958705 , € 32,-)
- M54 Extension Tube – 7.5 mm (#2958707 , € 33,-)
- M54 Extension Tube – 10 mm (#2958710 , € 34,-)
- M54 Extension Tube – 15 mm (#2958715 , € 35,-)
- M54 Extension Tube – 30 mm (#2958730 , € 37,-)
- M54 Extension Tube – 40 mm (#2958740 , € 39,-)
- Adapter M54i to M48a (#2958750 , € 36,-)
- Adapter M54a to M48i (#2958751 , € 36,-)
- M54i Inverter ring (male to female) (#2958752 , € 32,-)
- 2" Nosepiece to M54a – with Safety-Kerf
(#2958770 , € 38,-)

Baader 2" Filter Crown Tool
- Tool for tension-free mounting and dismounting of hard-to-reach 2" Baader filters with milled grip crown.
- Suitable for all mounted Baader 2" filters with Low Profile Filter Cell (LPFC) - fit not guaranteed for older filters. Not suitable for filters of other manufacturers without grip crown or with unknown mount diameters.
- Included with the Baader 2" Cool-Ceramic Safety Herschel Prism Mark II – (Visual / Photo) This tool was originally developed for the Baader Herschel prism to make it easier to replace the installed filters.

Baader MaxBright® II Sets
– with two Classic Ortho / Plössl Eyepieces each
We now offer Maxbright® II Binoviewer-Sets with two Classic Ortho / Plössl Eyepieces each (for the price of one pc). These are ideal for planetary observation with the highest resolution.
- Baader Maxbright® II Binoviewer Set with two 6mm Classic Ortho eyepeices (#2456467 , € 549,-)
- Baader Maxbright® II Binoviewer with two 10mm Classic Ortho eyepeices (#2456468 , € 549,-)
- Baader Maxbright® II Binoviewer with two 18mm Classic Ortho eyepieces (#2456469 , € 549,-)
- Baader Maxbright® II Binoviewer with two 32mm Classic Plössl Eyepieces (#2456470 , € 549,-)