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Astronomy Bandpass Filter, Kron-Cousins, UV 25mm Dia.

Astronomy Bandpass Filters

Astronomy Bandpass Filters

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Stock #21-103 3-5 days
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A$460.80
Qty 1-5
A$460.80
Qty 6+
A$414.40
Volume Pricing
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Product Details

Type of Filter:
Kron-Cousins, U
Type:
Bandpass Filter

Physical & Mechanical Properties

Diameter (mm):
25.00 +0/-0.25
Thickness (mm):
5.00 ±0.1
Parallelism (arcsec):
<30

Optical Properties

Center Wavelength CWL (nm):
365.00
Full Width-Half Max FWHM (nm):
60.00
Minimum Transmission (%):
>50
Surface Quality:
60-40
Transmitted Wavefront, RMS:
λ/4

Regulatory Compliance

RoHS 2015:
Certificate of Conformance:
REACH 241:

Product Family Description

  • Filter and Measure Light from Astronomical Objects
  • Ideal for Photometric Calibration
  • UBVRI Filters

Astronomy Bandpass Filters are used to filter out and measure specific bands of light emitted by astronomical and celestial objects. Johnson/Bessel filters are well suited for use with photomultiplier tubes and Kron/Cousin filters are well suited for use with Silicon sensors because of the sensors’ responsivity. Both types of filters utilize identical UV (U), Blue (B), and Violet (V) filters. However, the Red (R) and Infrared (I) filters are optimized for use with either a photomultiplier tube or silicon CCD detector. Astronomy Bandpass Filters have precisely controlled thicknesses to minimize the common problem of refocusing when changing filters.

Title CompareStock Number  Price Buy
Astronomy Bandpass Filter, Kron-Cousins, Set of 25mm Dia. #21-108 A$2,176.00 Qty 6+ A$1,960.00   Request Quote
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Astronomy Bandpass Filter, Kron-Cousins, Set of 50mm Dia. #21-114 A$6,368.00 Qty 6+ A$5,728.00   Request Quote
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Astronomy Bandpass Filter, Kron-Cousins, Set of 50 x 50mm #21-120 A$6,368.00 Qty 6+ A$5,728.00   Request Quote
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Astronomy Bandpass Filter, Johnson-Bessel, Set of 25mm Dia. #21-126 A$2,176.00 Qty 6+ A$1,960.00   Request Quote
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Astronomy Bandpass Filter, Johnson-Bessel, Set of 50mm Dia. #21-132 A$5,872.00 Qty 6+ A$5,288.00   Request Quote
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Astronomy Bandpass Filter, Johnson-Bessel, Set of 50 x 50mm #21-138 A$5,872.00 Qty 6+ A$5,288.00   Request Quote
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