ZWO 1.25" OIII 7nm Narrowband Filter

ZWO 1.25" OIII 7nm Narrowband Filter

ZWO 1.25" OIII 7nm Narrowband Filter

ZWO

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

€199.00

Available Upon Request

Available Upon Request

This includes products that we do not keep in stock but are only available upon request or have been announced in advance by the manufacturer. These items are usually shipped within 5-14 days. Once we receive your order, we will notify you by e-mail or telephone of the exact delivery time, as well as the amount of any deposit that will be required.

Availability: In stock
SKU
ZWO-OIII7nm1.25


ZWO 1.25" OIII 7nm Narrowband Filter


Passes 7nm bandwidth of light centered on a 500nm wavelength, which corresponds to OIII emission lines. All other light is blocked.

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

  • FWHM: 7±0.5nm
  • Glass Thickness 2.0+/-0.03 mm (1.25”/31mm/36mm)
  • Fine-optically polished glass ensures accurate 1/4 wavefront over both surfaces
  • Approx 90% transmission at major OIII line 500nm
  • Infrared wavelength 700-1100nm cut-off
  • <0.1% transmission of off-band, OD3 (Optical Density)
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