Filtre Narrowband Filter Set H-alpha, SII, OIII 2"

The narrowband nebula filters from ZWO for astrophotography clearly increase the contrast of the object.

• The set consists of an H-Alpha (656 nm), S-II (672 nm) and O-III (500 nm) filter
• The filters are 2" in a low-profile filter cell
• FWHM 7 nm (narrow band)
• Main field of application: photography of dim nebulae
• Parfocal with all ZWO filters
• Supplied in practical plastic storage boxes