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Astronomik ProPlanet 642 IR Pass Pentax K1 Clip Filter - P642-PENTAX

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SKU: ASF-P642-PENTAX

Astronomik ProPlanet 642 IR Filter - Pentax K1 Clip


The latest contribution to the Astronomik ProPlanet IR-pass filter family, the ProPlanet 642 BP enables a wide range of daytime IR photography applications, as well as high resolution lunar and planetary imaging, and, when used for astrophotography, stunning deep sky image captures of H-Alpha region objects.

This filter provides a 200 nm spectral window from 642 nm to 842 nm. Unlike Astronomik's other two ProPlanet filters, the P642 blocks the longer infrared. Along with the ProPlanet 742 and 807 filters, Astronomik now gives you three choices for your IR-imaging needs. The ProPlanet 642 will frequently be the correct choice for optimal imaging.

Daylight IR-Imaging:

  • High contrast images boast excellent color presentation
  • Clear images with "wood effect"
  • No longer IR hot spot
  • Short exposure times analogous to regular VIS-imaging
  • Ideally suited for infrared videos

High Resolution Lunar & Planetary Imaging:

  • Short exposure times
  • Sufficient seeing decrease
  • Improved contrast
  • Longer IR is blocked to remove ghosting and facilitate maximum sharpness


Deep-Sky Astrophotography of H-Alpha Regions:

  • Excellent 656 nm H-Alpha line transmission
  • Close to 40 nm FWHM with astro-modified digital SLR cameras
  • Incredible contrast even in moonlight or severely light polluted conditions
  • Modest filter price favorable for casual H-Alpha imagers
  • Camera display plus LiveView enables easy focusing


Technical Specifications

  • Over 96% transmission for wavelengths in the 642 nm to 842 nm range
  • Blocks 350 nm to 630 nm wavelengths
  • Parfocal with any other filter carried by Astronomik
  • Glass thickness: 1 mm
  • Coatings provide complete insulation from the effects of scratching, aging, and high humidity
  • Diffraction limited, this filter will not lower your telescope's optical performance level
  • Astronomik filters are shipped with long-lasting, supreme quality plastic storage container


Astronomik Pentax K-1 Clip Filter System

Compatible with Pentax K1 and K1 Mk II digital SLR cameras, this Pentax K1 clip filter is the newest member of the Astronomik clip filter family. Does not support camera models with APS-C sensors! Astronomik clip filters are designed to be used with traditional camera lenses for use with telescopes.