ZWO O-III 7nm narrowband filter (36mm)

SKU: ZWO OIII7nmD36 Categories: , ,

The ZWO Oxygen 3 (O-III) is a very popular filter that is used to cut out large amounts of light pollution and improve visibility. Designed to isolate the OIII emission bands for best signal-to-noise performance ,allowing 7nm bandwidth of light centered on a wavelength of 500nm through.

Adding the ZWO O-III Narrowband filter to your imaging collection will help you go beyond the RGB imaging and will help capture your favorite nebula’s in a totally new light, no matter how polluted your skies may be.

Use it with H-alpha and S-II narrowband filters Set for tricolor CCD astrophotography.

Narrowband imaging with the full set (H-alpha, OIII-CCD and SII-CCD) of filters can be done with the moon visible and in heavy light pollution, so your equipment is not sitting dormant for several weeks

 

Key features:

  • Designed for nebula observation
  • Ideal for visual observation on most emission nebulae, planetary nebulae and supernova remnants
  • Reduces transmission of certain wavelengths of light, eg Sky Glow.
  • High quality optically polished to ensure accurate 1/4 wavefront
  • more than 90% transmission at passband
  • Infrared wavelength 700nm – 1100nm cut-off
  • Precision off-band blocking
  • Multilayered anti reflection coating
  • Small spectral gap to minimize effect of light pollution
  • Parfocal – thickness  2mm

 

$269.00 inc GST

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The ZWO narrowband O-III 7nm filter is designed for nebula observation allowing 7nm bandwidth of light centered on a wavelength of 500nm through, which corresponds to OIII emission lines, blocking out all other light.

Adding the ZWO O-III Narrowband filter to your imaging collection will help you go beyond the RGB imaging and will help capture your favorite nebulas in a totally new light, no matter how polluted your skies may be!

Specifications:

 

Size: 36 mm
Shape: Round (unmounted)
Thickness: 2.0 mm
Package: Plastic case
Transmission at 500nm (O-III) 90%
Infrared wavelength: 700 – 1100nm cut off
FWHM: 7±0.5nm
In the box: 36mm Oxygen 3 Filter