For expert technical support call:  +44 (0) 1392 791 001  or email:  info@ikarusimaging.com Powered by First Light Optics +44 (0) 1392 791 001   info@ikarusimaging.com
ZWO 1.25'' Ha SII OIII 7nm Narrowband Filter Set
  Zoom

ZWO 1.25" Ha SII OIII 7nm Narrowband Filter Set

£325.00✓ 2 year warranty

:  

In stock shipped 1-2 working days.

About this product

Model:  zwo_hso7_125
Part Number:  ZWO-HSO7-1.25SET

From 2018 onwards, ZWO upgraded their narrowband filters to reduce halos and improve overall performance. 

Narrowband filters reduce the transmission of certain wavelengths of light, including those produced by artificial light including mercury vapour, both high and low pressure sodium vapour lights and the unwanted natural light caused by neutral oxygen emission in our atmosphere (i.e. skyglow).

Ha 7nm

Has a bandwidth of 7nm and passes light at 656nm wavelength. 

OIII 7nm

Has a bandwidth of 7nm and passes light at 500nm wavelength. 

SII 7nm

Has a bandwidth of 7nm and passes light at 672nm wavelength.

FEATURES

  • FWHM: 7±0.5nm
  • Glass Thickness 2.0+/-0.03 mm (1.25”/31mm/36mm)
  • Fine optically polished glass with 1/4 wavefront accuracy over both surfaces
  • Approx 90% transmission at selected wavelengths
  • Infrared wavelength 700-1100nm cut-off
  • <0.1% transmission of off-band, OD3 (Optical Density)

Transmission Curve

Customer reviews

Be the first to Write a Review for this item!

FAQ

Please fill in the form below to ask a question.