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Optolong H-Alpha 7Nm Filter - 2" Mounted 1

Optolong 7nm H-Alpha Narrowband Filter – 2-Inch Mounted

Original price was: $229.00.Current price is: $76.33.

In stock

Quantity
SKU: OPT-HA-7nm-2 Category: Brand:

Description

Sizes

  • 2″ Mounted

Specifications

  • CWL(centre wavelength): 656.3nm
  • Fwhm: 7nm
  • Tpeak: <85%
  • Coating Wavelength: 300-1100nm
  • Optical Denisity: OD3
  • Surface Quality: 60/40
  • Transmitted Wavefront RMS: λ/4
  • Parallelism (arcsec): 30s

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