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The IDAS LPS-V3 filter is designed to provide maximum contrast between key astronomical emission lines and a light polluted sky. These filters incorporate IDAS Multi-Bandpass, Ultra-Fine Polish, and Ion-Gun Assist Deposition technologies to insure un-degraded and extremely durable optical performance.

LPS-V3 filters are available as camera-body-mounted filters for Canon digital cameras or as screw-in filters in the following sizes:

  • 28.6 mm
  • 48 mm
  • 52 mm

For special applications requiring isolation of the H-Beta or OIII sub-bands, consider the PassBand Modifier (PBM) filters. These are meant to be used in conjunction with an LPS-V3 filter or similar filter.