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Astronomik ProPlanet 642 IR Pass Filter - T-Mount - P642-T

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Astronomik ProPlanet 642 IR-Pass T-Mount Filter

Astronomik's most recent contribution to their ProPlanet IR-Pass line of filters, the ProPlanet 642 BP offers an extensive range of daytime IR imaging applications, along with high resolution lunar and planetary imaging, and capturing spectacular photos of objects in the H-Alpha portion of spectrum when employed for astrophotography.

A 200 nm spectral window from 642 nm to 842 nm is provided by this filter. The P642 blocks the longer infrared, as opposed to the other two Astronomik ProPlanet filters. For your IR-imaging requirements, Astronomik now offers three distinct options. The ProPlanet 642 will frequently be the proper choice for ideal imaging.

Daylight IR-Imaging:

  • Images feature high contrast and superior color presentation
  • Clear images with "wood effect"
  • No hot spot in the longer IR
  • Short exposure times analogous to normal VIS-imaging
  • Best-suited for infrared videos

High Resolution Lunar & Planetary Imaging:

  • Short exposure times
  • Effective seeing decrease
  • Improved contrast
  • Longer IR obstruction removes ghosting and allows peak sharpness

Deep-Sky Astrophotography of H-Alpha Regions:

  • Best H-alpha line transmission at 656 nm
  • FWHM of about 40 nm with astro-modified Digital SLR cameras
  • Amazing contrast in moonlight or in heavily light polluted conditions
  • Filter is priced sensibly for H-Alpha imaging amateurs
  • Camera display plus LiveView enables simple focusing

Technical Specifications

  • 96%+ transmission for 642 nm to 842 nm wavelengths
  • Blocks 350 nm to 630 nm wavelengths
  • Parfocal with any other filter carried by Astronomik
  • 1 mm glass thickness
  • Offers complete insulation from the effects of scratching, aging, and high humidity
  • Diffraction limited, this filter will not reduce your telescope's optical performance
  • Astronomik filters come with a durable, high quality plastic filter case