Midwest Optical SP645-37.5

SP645-37.5
$125.00Out Of Stock

Mid-Red/NIR Dichroic Blocking Filter

  • Useful Range: 440-640 nm
  • Cut-on Wavelength 50% T: 645 nm
  • Tolerance: +/- 10nm
  • Minimum Peak Transmission: >90%
  • Surface Quality: 40/20

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Description

One of the most popular near-IR blocking filter for inside-the-camera applications. Also referred to as an infrared cut filter, these filters limit the amount of infrared radiation that reaches delicate CCD and CMOS sensors. Near-IR blocking is unusually exceptional in the case of these filters. CCD/CMOS imagers are very sensitive to infrared radiation and, often, deep red wavelengths as well. Using a SP645 filter will reduce or prevent a reddish, washed out coloring of the final image. These filters are 1 mm thick.

  • Useful Range: 440-640 nm
  • Cut-on Wavelength 50% T: 645 nm
  • Tolerance: +/- 10nm
  • Minimum Peak Transmission: >90%
  • Surface Quality: 40/20

Product Type:Visible
Spectral Range:400 to 640 nm
Filter Size:M37.5 x 0.5
Tolerance:=+/- 10 nm
Family:Shortpass
Min Peak Transmission:>90%
Surface Quality:40/20
Cut on Wavelength 50 t:645 nm

Sample Images

  • SP645 example

    SP645 example

  • SP645 example 2

    SP645 example 2