Baader Planetarium

• 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.

• M54 dustcap with S54a ring dovetail
• Robust cap made of black anodized metal
• Dustproof closure for the M54 Quick Change System

• Heavy duty quick release clamping for heavy accessories - with brass-clamping
• Optical path length 11 mm
• With Zeiss micro-bayonett
• Includes 1x Baader Molded Plastic Cap T-2 for Zeiss Quick Changer (#2904020 , € € 6.50)

• Leveling-Weight Set developed for PlaneWave Direct-Drive mounts: for perfect balance in both axis
• Mounts directly to the standard screw mount of all Planewave's common telescopes via the straight mounting block.
• Weights can be mounted in horizontal position at the rear of the OTA both "top" and "bottom". This makes it possible to balance the telescope in the vertical position as well.
• The Planewave Leveling-Set consists of
  • 1kg Leveling Weight Ø 75 x 30mm (#2951390 , € 101,-)
  • 2.5 kg leveling counterweight Ø 75x75mm, made of V2A stainless steel (#2951402 , € 143,-)
  • 150mm counterweight-shaft M14, Ø 16mm (#2451554 , € 80,-)
  • Mounting block for leveling counterweight bar M14 for PlaneWave Instruments CDKs (#2451549 , € 48,-)

• 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

• 47.4 mm (2" w/o cell) x 2 mm Baader CMOS RGB-R (595 – 690 nm) Bandpass Filter, suitable from f/15 to f/1.8
• 2" Filter removed from filter cell, specially selected for use with 2" Filter sliders of the Baader FCCT (Filter Changer Camera Tilter) for RASA 8" and QHY cameras (various versions available)
• Anti-reflection RGB filter (red/green/blue) with extremely high transmission of the respective color channel, thus simultaneously reducing stray light and reflections to an unprecedented level
• Balanced RGB design allows subframes to be taken with the same exposure time – extremely important for automated imaging tasks
• 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

• Converts an M68 (Zeiss) male thread in an M68 internal thread!
• For the operation of 2 "/ M68

• Baader H-alpha Ultra-Narrowband Filter – Premium Grade
• 3.5 nm FWHM (to harmonize the exposure time 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!

• 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,-)

• OTA cover for refractors with 160-200mm aperture
• prevents night dedicated telescopes with CCD Sensors on bigger telescope systems with many instruments for day and night observation from receiving sunlight while sun observation is in process
• every Baader TFS comes with the TFS controller. This controller includes a web interface which makes it easy for the customer to open and close the flaps from the existing PC web browser.
• Please Note: The mounting ring and the flap are customised according to the size of the OTA cover. These data must be defined in advance.

• Dustcap with T-2 (M42 x 0,75) male (outer) thread
• Robust cap made of black, high-quality plastic
• Dustproof closure for your accessories of the Astro T-2 system

• Baader T-Ring to connect Sony E/NEX DSLR cameras on the Astro T-2 system
• All Baader Wide-T-rings have an S52 dovetail in addition to the inserted T-2 ring to use adapters to M48, M68 or the UFC filter changer
• Ultra-short Backfocus of only 26.3mm (18mm camera, 8.3mm Wide-T-ring). Furthermore, the illumination of the camera chips improved significantly, mainly because of the larger clear aperture.
• Camera-sided connection: Sony E / NEX bayonet
• Telescope-sided connection: S52 dovetail clamp incl. S52/M48i and M48a/T-2i internal thread with 0.75mm pitch

• 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)

• Advanced Baader Slit-Dome for research and science, fully electronic
• Remote controlled or fully robotic and autonomical dome
• Built of hardened and lightweight glassfiber polyester, serves as Wind-, Light- and Weather-protection
• 10 years warranty on Storm-resistance up to 250km/h, many additional features and acccessories available, please ask us
• Dome sizes: available from 3,2 Meter to 8,5 Meter diameter

• Converts NexStar4 straight male thread into 2" SCT male thread
• ETX Extension ring
• Incl. 1¼ "filter holder

• Baader levelling flanges are used to adjust the unevenness of the foundation or the concrete pillar as well as other deviations of the substructure from the perfect north-south alignment. They adjust these imperfections as close as possible to the mount, very precisely and steady, without reducing the stability of the pillar
• suitable as a pillar adapter flange to the
• Top plate precision milled flat and threaded to fit the base plate.
• Overall height: 100 mm

• Achromatic 3x telecentric system
• Usable for H-alpha observation with frame for the block filter of the Baader SunDancer II H-alpha Filter (#1363056 , € 3545,-)
• Can be used in place of a Barlow lens
• Four-lens optical design, BBAR (Broad-Band Anti-Reflection) coating
• Anti-reflective thread and blackened lens edges against reflections and for maximum contrast
• Image circle 27.5mm in 96 mm distance to T-2 threaded base
• 1¼" and 2" nosepiece with 1¼" filter thread, T-2 thread on camera side
• The optical design places the telescope's focal point 28 mm behind the end of the 1¼" nosepiece
• 5-year warranty if handled properly

• Guidescope rings BP I (2 pc)
• With 6 large handknobs with screw and ball bearing tips
• For tube diameter 60 - 120mm

• Baader UFC S70/5 Extension 15mm
• telescope-sided with S70 dovetail clamp (screws included)
• camera-sided with S70 dovetail
• can be adapted via the S70 dovetail to the UFC filter base #2459110 and allows adaption of telescope-sided adapters with the S70 dovetail clamp