DayStar Filters 2.0Å Calcium II K-Line Quantum Filter (PE-Grade)

DayStar Filters 2.0Å Calcium II K-Line Quantum Filter (PE-Grade)

DayStar Filters 2.0Å Calcium II K-Line Quantum Filter (PE-Grade)

B&H # DACK2AUNI MFR # CK2AUNI
DayStar Filters 2.0Å Calcium II K-Line Quantum Filter (PE-Grade)

DayStar Filters 2.0Å Calcium II K-Line Quantum Filter (PE-Grade)

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Product Highlights

  • Highly-Precise Research-Grade Filter
  • Anti-Reflection Coated BK7 Glass
  • High-Sensitivity Tuning for Photography
  • RS-232 Serial Port for Computer Control
  • Recommended for use at f/15-f/20
  • Runs on 12 VDC Power
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  • 1Description

Designed and engineered as a research-grade solar-viewing instrument, Daystar Filters' 2.0Å Calcium II K-Line Quantum Filter is built with anti-reflection coated BK7 glass and highly-precise electronic tuning. The blue calcium k-line is sensitive to magnetic fields, so magnetically-active areas and structures show in high-contrast against the surrounding chromosphere; and this filter reveals complex temporal variations, also in the chromosphere.

Since much solar research is conducted remotely, there is an integrated RS-232 serial port that enables remote viewing of the filter's display and control of its tuning. Its concentration on the K-line makes it ideal for solar photography or remote image transmission due to the sensitivity of many imaging sensors to the K-line. This sensitivity allows imaging systems to resolve the different layers of the Sun's chromosphere at focal ratios between f/15 to f/20. The filter runs on 12 VDC power and comes with a 6' power cord with a set of international outlet plugs for US, EU, UK, and Australia.

UPC: 702730990476
In the Box
DayStar Filters 2.0Å Calcium II K-Line Quantum Filter (PE-Grade)
  • 12 VDC 6' Power Cord
  • Set - International Wall Plugs
  • Limited 10-Year Warranty
  • Table of Contents
    • 1Description
    Type Calcium II K-line
    Bandpass 2.0 Å
    3933 Å
    Size 1.25" / 3.2 cm, clear aperture
    Grade Research-grade
    Multi-Coated Yes
    Application Solar viewing
    Dimensions Diameter: 3.0" / 7.6 cm
    Length: 1.7" / 4.3 cm
    Length, with filter mounting plates: 2.2" / 5.6 cm
    Weight 16.0 oz / 453.6 g

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