Baader Planetarium

• 100ml Optical Wonder™ Cleaning Fluid, dislodges dirt, aggressive aetherical oils from pollen and fat
• Dries up completely without leaving any residue or wipemarks
• cleans without scratching: eyepieces, objective lenses – even mirrors (please see separate instruction)
• Works on all sensitive optical surfaces
• Forms an invisible protective layer against bacteria and fungi which tend to eat glass and coatings

• 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

• To connect Tak adapter M72 / M68 to Takahashi Mewlon reflectors
• This Mewlon Adapter, in combination with TAK Adapter M72 and the 2" Ultrashort eyepiece clamp (# 245 8196) results in an extremely short 2" eyepiece clamp for every Takahashi-Reflector (33mm optical path length in total).

• Baader Diamond Steeltrack Adapter with M68 female thread to connect M68 accessories according to Zeiss standard
• Special steel version for heaviest loads on the Baader Diamond Steeltrack focuser
• Replaces the standard clamp with the S58 dovetail ring
• Suitable for all Baader Diamond Steeltrack® (BDS) focusers

• Much larger prism as in the so-called "Erecting prism"
• Many Erect image prisms have only 19 mm free passage opening and therefore are not suitable for terrestrial observations at low magnifications, because the field of the eyepiece is shaded by the too small prism.

• H-alpha filter with 20 nm FWHM (CWL 656.3 nm), thus excellently suited for visual use at night - and photographically with CCD and CMOS cameras at telescopes with all f-ratios. Warning: this filter alone is not suitable for direct viewing of the sun!
• With new, highly effective UV/IR block coating from 300 nm to 1400 nm
• Similar to the Super G filter in O III, the 20 nm H-alpha filter is an outstanding high-contrast deep-sky H-alpha/red filter for RGB applications, optimised for all colour CCD and CMOS chips. It enables high-contrast images of H-II regions (e.g. North America nebulae) even from light-polluted environments.
• Front-Reflex-Blocker™ hard coated and planeoptically polished – with sealed coating edges (Life-Coat™)

• DT Adapter II & III and Hyperion Eyepieces
• The Hyperion DT-rings are optimized for the shortest distance between eyepiece lens and digital camera lens.

• Baader H-alpha / O-III / S-II Ultra-Narrowband Filter Set – Premium Grade
• 3.5 / 4 nm FWHM (to harmonize the exposure time from H-alpha with O-III / S-II), recommended for optical systems from > f/3.4
• For highest contrast even at strongest light pollution, minimizes star size, emphasizes finest nebula detail – indispensable under Bortle 9/8/7/(6) skies
• Reflex-Blocker™ hard coated and planeoptically polished – with sealed coating edges (Life-Coat™)
• Blackened edges all around, with filter-lead-side-indicator in the form of a telescope-sided black outer rim
• Optimized for modern CMOS cameras, but likewise excellent for CCD camera technologies

We explicitly warn against observing the sun with a DeepSky 3.5 nm (equivalent to 35 Ångstroem) H-alpha narrowband filter, specialized solar chromosphere and prominence filters from SolarSpectrum start at 0.8 Ångstroem. Photographic experiments with a camera are theoretically possible, but by no means observe the sun with naked eyes – you endanger your eyesight!

• 2" camera adapter for digital compact cameras (for eyepieces with diameters between 29 and 63mm )
• Secure grip! 25mm wide eyepiece clamp, for safely holding heavy cameras without any torsion. Much more stiff and rigid construction than all clones
• Sturdy swivel arm with clickstop for cameras up to 1.5 kg
• For afocal projection photography
• ClickStop Twist-Lock-Mechanism

Photography with larger cameras

The Microstage II is the universal solution for small compact cameras. Large cameras up to DSLR require a sturdier connection. In this PDF you find an overview of all adaptation options using the camera bayonet or lens thread

• Filter Frame for D-ERF Filter, Diameter 75 - 180 mm
• No serial production - every filter frame will be adapted to your needs and professionally produced on our in-house 3D-printer (70-160 mm) or are CNC machined Aluminium (180 mm)
• Filter frame offers complete safe and firm hold for the delicate D-ERF energy reflection filters
• Only available in combination with Solar Spectrum H-alpha Filters and D-ERF Filters

• T-2 Photo Adapter with 2" female thread
• Incl. 1¼" Filter holder
• NX4 (C90) / ETX (and SC!) Universal Photo Adapter
• Combination of the parts Baader 2" NX4 (C90) / ETX Expanding Ring (#2958500A , € 33,-) and Baader SC / HD Ultra Short T-Adaptor, 9mm optical length (#2958500B , € 51,-)

• For double mounting plates (#2451559)
• As well as self-constructions
• Incl. screws

• Baader BACHES: High Resolution Echelle Spectrograph with Autoguiding- and Remote-Calibration-Port – professional use in astronomical research and university student training
• average spectral resolution R = 18,000,
• changeable 25 and 50μm slits (length 125μm)
• optimized wavelength range: 392-800nm (depending on sensor size)
• light and compact, only 1350g (without camera)
• high mechanical stability, FE designed, torsion deformation below 9μm at 180° rotation
• optimized for sensor sizes ca. 15x10mm, 9μm Pixel (i.e. KAF-1603), usable with 7x4mm sensor sizes (i.e. ST-402) and DSLR‘s
• collimator focal ratio f/10
• optimized for 8" to 24" f/10 telescopes (full resolution from f/8 to f/12)
• delivered in fully calibrated condition
• solenoid switches between the light from the telescope and the ThAr calibration and flatfield lamp of the RCU
• manual red LED for Slit-Focusing
• Important recommended accessory: RCU (Remote Calibriation Unit) (#2458621 , € 4950,-)

• 3-lens field corrector for BAADER APO 95/560 CaF2 Travel Companion
• 76.11mm backfocus, 52mm corrected field of view
• telescope side M68a thread, camera side M68i thread

• Reducing piece: M68a to T-2a
• to change an M68 female into T-2 male thread
• combination of M68/2" UNFi changer ring (#2458232) and T-2/2" changer ring (#1508035)
• The built-in 2"/T-2 ring is removable (for this we recommend our Adjustable pin-type face wrench #2450062) and reveals a 2" SC (50,8mm) female thread

• Y-cable for powering two 12 V instruments with one power supply (for 5.5 / 2.1 plugs)
• For up to 60W total power
• 1x adapter for barrel connector 5,5/2,1 mm
• 2x barrel connectors 5,5/2,1 mm
• Length: 37 cm

• Research Grade Telecentric Unit, featuring an oversized pick up expanding lens set and 2" (50.8mm) threads on both sides – T-2 Adapter and 2" m/f inverter ring are both included as standard accessories
• 46mm clear aperture at the H-alpha-filter entrance side - suitable for research grade SolarSpectrum H-alpha filters
• Large working distance of 250mm for optimized focal length reduction with a telecompressor and suitable room for adapting a binocular viewer
• Aplanatic, with 3x focal length extension to achieve a parallel f/30 beam in conjunction with ~f/10 optics systems – free of field curvtare
• Primarily calculated and produced for H-alpha at 656,3 nm, delivering 99% Strehl (definition brightness) depending on the used telescope system
• Diffraction limited design with about 80% Strehl also at 396 nm (CaK)

• Baader SLOAN-r' Bandpass Filter, suitable from f/15 to f/1.8
• SLOAN/SDSS (ugriz’) photometric filter with transmission according to SLOAN-specification
• Manufactured with most advanced ion beam coating technology / Daylight-Proof
• Reflex-Blocker™ hard coated and planeoptically polished – with sealed coating edges (Life-Coat™)
• Blackened edges all around, with filter-lead-side-indicator in the form of a telescope-sided black outer rim
• Equally suitable for modern CMOS cameras as well as for older CCD camera technologies

• Baader UFC S70 / C14 Hyperstar, SC, HD Adapter
• telescope-sided C14 Hyperstar, SC and EdgeHD Adapter
• camera-sided with S70 dovetail
• can be adapted via the S70 dovetail to the UFC filter base #2459110 as well as to UFC extensions
• Please note the below description on Hyperstar Adaptation