ZWO 31 mm LRGB Filter Set

This filter set from ZWO includes four 31 mm unmounted filters: Red, Green, Blue, and Luminance. They are a great match for the ZWO five-position color filter wheel. The filters have high transmission (over 90%), are anti-reflection coated on both sides and have IR-Cut built-in.

Features of the ZWO 31 mm LRGB Filter Set

• Fine-optically polished to ensure accurate 1/4 wavefront.
• more than 92% transmission at passband.
• Infrared wavelength 700-1100nm cut-off.
• Precision off-band blocking.
• Multi-layers anti-reflection coating.
• Small spectral “gap” to minimize the effect of light pollution.
• More parfocal – thickness 2 mm.

OPT Product Number: ZWO-LRGB-31MM