Violet 2024


Violet Friday Offers: Here You can expect heavily discounted items from many well-known manufacturers. If you want to buy a telescope or accessories - whether for yourself or as a gift - Violet Friday is the perfect opportunity to find a great deal and benefit from attractive discounts.

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Feature summary Altair 2210M CMOS Camera:
  • SC 2210 Mono CMOS Sensor
  • 1920 x 1080 pixel resolution:
  • 4 um Square Pixels
  • 1/1.8-inch Optical Format
  • 12-bit ADC
  • 512mb DDR3 Memory
  • G Sensitivity: 20100mv/lux*s
  • Low Noise: : 0.47 to 3.2e-  
  • Fast Frame Rate 50 FPS in 8bit mode
  • Binning from 1x1 to 8x8 in either stacking or averaging modes.
479.00 € 431.00 €
Estimated delivery time : 3-4 weeks
 
 
Another first for solar astronomy, the Altair G-Band 2nm Solar filter enhances finer details in the solar photosphere.

Altair 2nm G-Band Solar Contrast Filter filter specifications: 

  • Standard 1.25" Filter Threaded Aluminium Cell
  • CWL 430.3nm @ 96% transmission, tolerance 1%
  • FWHM 2nm, tolerance 0.5nm.
  • 1.85mm thick quartz ?/4, Parallelism (arcsec) 30"
  • Si02 "hard" overcoat with UVIR Block 300-1100nm and Anti-Reflection Coating
  • High resolution spectrographic test report included corresponding to each individual filter.
279.00 € 251.00 €
Estimated delivery time : 2-4 weeks
 
 
Another first for solar astronomy, the Altair G-Band 2nm Solar filter enhances finer details in the solar photosphere.

Altair 2nm G-Band Solar Contrast Filter filter specifications: 

  • Standard 2" Filter Threaded Aluminium Cell
  • CWL 430.3nm @ 96% transmission, tolerance 1%
  • FWHM 2nm, tolerance 0.5nm.
  • 1.85mm thick quartz ?/4, Parallelism (arcsec) 30"
  • Si02 "hard" overcoat with UVIR Block 300-1100nm and Anti-Reflection Coating
  • High resolution spectrographic test report included corresponding to each individual filter.
409.00 € 368.00 €
Estimated delivery time : 2-4 weeks
 
 

The Altair wide-field binoviewer allows vignetting-free observations with almost all 1.25" eyepieces through oversized prisms.

  • Clear aperture 28 mm / prism diameter 30 mm
  • 1.25 connection on the telescope
  • Prism surface Lambda/8
  • Self-centering eyepiece connection for perfect fit of the eyepieces, also with safety groove
  • Built-in micro focuser for diopter compensation on each side
  • Short design with only 118.5 mm optical path - can be used with many refractors without compensating the optical path
  • Robust transport and storage case included in the scope of delivery
499.00 € 449.00 €
Estimated delivery time : 2-4 weeks
 
 

Feature summary GPCAM3 462C:

  • 1920 x 1080 Resolution 
  • 2.9 um Square Pixels
  • 1/2.8-inch sensor format
  • 5.57mm x 3.13mm sensor size
  • Low Read Noise: 0.49 to 2.1e- 
  • High Frame Rate 152 FPS 8 bit
  • 12-bit ADC
  • Binning from 1x1 to 8x8 in either stacking or averaging modes.
299.00 € 269.00 €
Estimated delivery time : 3-4 weeks
 
 

Feature summary GPCAM3 462C:

  • 1920 x 1080 Resolution 
  • 2.9 um Square Pixels
  • 1/2.8-inch sensor format
  • 5.57mm x 3.13mm sensor size
  • Low Read Noise: 0.49 to 2.1e- 
  • High Frame Rate 152 FPS 8 bit
  • 12-bit ADC
  • Binning from 1x1 to 8x8 in either stacking or averaging modes.
349.00 € 314.00 €
Estimated delivery time : 3-4 weeks
 
 

Feature summary GPCAM3 462M:

  • 1920 x 1080 Resolution 
  • 2.9 um Square Pixels
  • 1/2.8-inch sensor format
  • 5.57mm x 3.13mm sensor size
  • Low Read Noise: 0.49 to 2.1e- 
  • High Frame Rate 152 FPS 8 bit
  • 12-bit ADC
  • Binning from 1x1 to 8x8 in either stacking or averaging modes.
299.00 € 269.00 €
Estimated delivery time : 3-4 weeks
 
 

Fast 60mm viewfinder with helical focuser and tube clamps

Key data

  • 60mm aperture
  • 225mm focal length at a focal ratio of f/3.75
  • Illuminated crosshair eyepiece
  • Helical focuser (the image does not rotate when focusing)
  • Complete tube clamp set with mounting material
  • Can also be used as a guidescope
269.00 € 242.00 €
Estimated delivery time : 2-4 weeks
 
 
The Altair Astro Planet-Killer 685nm Premium IR Pass Filter is designed to deliver sharper lunar and planetary images with Monochrome CCD or CMOS cameras. 
69.00 € 62.10 €
Estimated delivery time : 2-4 weeks
 
 

With the TS ADC your images of moon and planets as well as your observations near the horizon become significantly sharper and more detailed.

  • Corrects the color shift (Dispersion) of our atmosphere - less color fringing, more sharpness and detail
  • Convenient operation with eyepiece attached - simply rotate the lever and notice how the sharpness of your view or camera image improves.
  • The principle behind the ADC is simple - two prisms are shifted relatively to each other and thereby compensate the color shift of the atmosphere (see image)
  • A ring scale allows for reproducable adjustments
  • Simple adaptation on the telescope side and eyepiece side via 1.25" receptacle and T2 thread
  • Ultraslim design - the TS ADC can even be attached to binoviewers - height without T2 connection parts only 29 mm from T2 to T2
  • Usable among others for observation and photography of planets, the moon or double stars
179.00 € 161.00 €
Estimated delivery time : 2-4 weeks
 
 
Whether youre doing planetary visual observing, planetary imaging, or deep sky imaging, the Bahtinov Mask is a great accessory to get the best focus ...
39.00 € 35.10 €
Estimated delivery time : 2-4 weeks
 
 
Whether youre doing planetary visual observing, planetary imaging, or deep sky imaging, the Bahtinov Mask is a great accessory to get the best focus ...
19.00 € 17.10 €
Estimated delivery time : 1-3 weeks