Astronomik Deep-Sky RGB Filter Set - 31mm Round Mounted

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Astronomik Deep-Sky RGB Filter Set - 31mm Round Mounted
$289.95
Item # AK-DRGB-31R
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  • This Astronomik Deep-Sky RGB Filter Set includes Red, Green and Blue filters that are 31mm in diameter.
  • Up to 95% maximum transmission.
  • With these Astronomik 31mm Round Deep-Sky RGB Filters, you'll experience high contrast, extremely sharp images.
  • Made using a very sturdy, scratch-resistant coating, collected on the finest polished optical substrate.
  • Data derived from the Astronomik 31mm Deep-Sky RGB Filter Set is easier to develop into a magnificent final image with brilliant colors.
  • Features MFR coating technique for a large assortment of focal ratios.
  • Enhanced spectral windows for maximum photon counts on the sensor.
  • You'll need to purchase an L1, L2, or L3 Luminance filter as well. Which one is best for you depends on the scope you're using with these filters- more information can be found on the separate page for the L1, L2, and L3 Luminance filters.
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Astronomik Deep-Sky RGB Filter Set - 31mm Round Mounted


Astronomik's new Deep-Sky RGB filters are the consequence of a long, meticulous research and development process. As a result, Astronomik has created the most advanced RGB filter set for Deep-Sky imaging currently available.

The transmission curves of these filters are made to present you with strong, brilliant colors with a distinct reinforcement of the most essential emission lines. Data derived from the new Astronomik Deep-Sky RGB filters is easier to process into a magnificent work of art.

While designing these new Deep-Sky RGB filters, Astronomik paid close attention to the sensitivity curves of the most popular modern CCD cameras. From this they found a method for making one set of filters for many types of sensors, from KAF and KAI sensors to Sony-made chips. This means you can perform 1:1:1 ratio RGB exposures with all sensors, with only nominal adjustments needing to be made during processing to obtain an image with flawless color!

Transmission curve features and coatings on these new Deep-Sky RGB filters have been produced so that no reflections or halos will be noticeable. You'll still be able to distinguish even the haziest areas of galaxies or nebulae even with bright stars in your field of view.

You'll need to purchase an L1, L2, or L3 Luminance filter as well. Which one is best for you depends on the scope you're using with these filters- more information can be found on the separate page for the L1, L2, and L3 Luminance filters.

Similar to all Astronomik filters, these new Deep-Sky RGB filters are constructed using a very sturdy, scratch-resistant coating, collected on the finest polished optical substrate, which is completely free from any striae or internal strains. And since all substrates are manufactured to precisely the same thickness, all Astronomik Deep-Sky RGB filters are parfocal.

Astronomik Product Number: DRGB-31R

Additional Information

Additional Information

SKU AK-DRGB-31R
Manufacturer Astronomik
Type of Filter Deep-Sky
Filter Usage Imaging
Single or Set? Filter Set
Filter Size 31mm
Filter Shape Round
Filter Mounted? Mounted
Warranty 10 Year Warranty
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Included Items

Included Items

  • Deep-Sky Red Filter - 31mm Round Mounted
  • Deep-Sky Green Filter - 31mm Round Mounted
  • Deep-Sky Blue Filter - 31mm Round Mounted
  • Plastic Cases
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