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Astronomik SII 12 nm CCD Filter - M52 Round Mounted - SII-M52

SKU: ASF-SII-M52

Product is backordered from the manufacturer. Once the order is placed our team will update you on the anticipated arrival date.

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Astronomik SII 12 nm CCD Filter - M52



  • Designed for astrophotography, this Astronomik SII CCD Filter comes in a round M52 threaded cell
  • Made to the highest technical standards to provide the optical efficiency necessary to execute deep sky imaging operations using your CCD camera
  • Ionized sulfur (SII) light is allowed to be transmitted while the whole remainder of the visual spectrum plus IR is blocked
  • 12 nm FWHM bandwidth
  • Best suited for imaging planetary nebulae and supernova remnants
  • Made in Germany, a country recognized for producing high quality optics!




More About Astronomik SII 12 nm CCD Filters



This SII CCD Filter from Astronomik is the ultimate narrowband imaging filter. For common CCD cameras, this filter's 12 nm full width at half maximum (FWHM) is ideal as it allows extremely fast optics to be employed. The f/number application range is between 1:2.8 and 1:15. Astronomik filters only experience transmission losses and chromatic distortions when severely bright aperture ratios of 1:2 or more are involved, whereas they arise much more frequently with other filters. An additonal advantage of 12 nm filters is the enhanced guide star availability for cameras with an integrated autoguider. The Astronomik SII 12 nm CCD Filter has a transmission of up to 99%.



An excellent filter for dealing with heavy light pollution, the Astronomik SII 12 nm CCD Filter boosts contrast between objects in the SII emission line and the skyglow background while completely suppressing the emission lines of artificial mercury (Hg) and sodium (Na) light, as well as skyglow. With the Astronomik SII 12 nm CCD Filter, you'll observe razor sharp stars identical to those you're used to seeing with your regular telescope due to the supreme quality of the substrate.



All unwanted visible and IR spectral band wavelengths are fully obstructed with this M52 Threaded SII 12 nm CCD Filter from Astronomik. Like all Astronomik filters, the M52 SII 12 nm CCD Filter is parfocal with all other Astronomik filters. It has an ultra thin substrate and is diffraction limited to preserve your telescope's optical performance. Coatings offer total protection from scratching as well as the effects of aging and high humidity. All Astronomik filters arrive in a long-lasting, supreme quality plastic storage container.



Transmission Specifications



  • 97%+ transmission for the ionized sulfur (SII) line
  • The remainder of the visual spectrum is almost entirely blocked
  • Blocks unnecessary wavelengths in the infrared
Description
Description

Astronomik SII 12 nm CCD Filter - M52

  • Designed for astrophotography, this Astronomik SII CCD Filter comes in a round M52 threaded cell
  • Made to the highest technical standards to provide the optical efficiency necessary to execute deep sky imaging operations using your CCD camera
  • Ionized sulfur (SII) light is allowed to be transmitted while the whole remainder of the visual spectrum plus IR is blocked
  • 12 nm FWHM bandwidth
  • Best suited for imaging planetary nebulae and supernova remnants
  • Made in Germany, a country recognized for producing high quality optics!


More About Astronomik SII 12 nm CCD Filters

This SII CCD Filter from Astronomik is the ultimate narrowband imaging filter. For common CCD cameras, this filter's 12 nm full width at half maximum (FWHM) is ideal as it allows extremely fast optics to be employed. The f/number application range is between 1:2.8 and 1:15. Astronomik filters only experience transmission losses and chromatic distortions when severely bright aperture ratios of 1:2 or more are involved, whereas they arise much more frequently with other filters. An additonal advantage of 12 nm filters is the enhanced guide star availability for cameras with an integrated autoguider. The Astronomik SII 12 nm CCD Filter has a transmission of up to 99%.

An excellent filter for dealing with heavy light pollution, the Astronomik SII 12 nm CCD Filter boosts contrast between objects in the SII emission line and the skyglow background while completely suppressing the emission lines of artificial mercury (Hg) and sodium (Na) light, as well as skyglow. With the Astronomik SII 12 nm CCD Filter, you'll observe razor sharp stars identical to those you're used to seeing with your regular telescope due to the supreme quality of the substrate.

All unwanted visible and IR spectral band wavelengths are fully obstructed with this M52 Threaded SII 12 nm CCD Filter from Astronomik. Like all Astronomik filters, the M52 SII 12 nm CCD Filter is parfocal with all other Astronomik filters. It has an ultra thin substrate and is diffraction limited to preserve your telescope's optical performance. Coatings offer total protection from scratching as well as the effects of aging and high humidity. All Astronomik filters arrive in a long-lasting, supreme quality plastic storage container.

Transmission Specifications

  • 97%+ transmission for the ionized sulfur (SII) line
  • The remainder of the visual spectrum is almost entirely blocked
  • Blocks unnecessary wavelengths in the infrared
Specifications
Specifications
Model Number SII-M52
Single Filter, Set, or Accessory Single Filter
Filter Type SII
Filter Size M52
Filter Shape Round
Filter Insert Style Threaded
Filter Bandpass 12 nm
Filter Optical Thickness 1 mm
Warranty Astronomik 10 Years
What's in the Box?
What's in the Box?
  • Astronomik SII 12 nm CCD Filter - M52
  • Plastic Storage Case
  • Astronomik M52 Threaded SII 12 nm CCD Filter
  • Astronomik SII 12 nm CCD Filter Transmission
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