ZWO 31mm SHO Narrowband Filters

  • Brand: ZWO
  • Product Code: ZWO-31-Narrowband
  • Availability: Pre-Order (one month)
  • $15,900TWD

Filters Ha: 653-660 nm, SII: 669-676 nm, OIII: 497-504 nm The above are estimations, please see the transmission curve for exact values.
Size 31 mm
Thread none
Transmission 90 %
Blocked Transmission <0.1% transmission of off-band, OD3
FWHM 7±0.5 nm
Infrared Cut-off 700-1100 nm
Optical flatness 1/4 lambda
Glass Thickness 2 mm

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