The ZWO 36mm LRGB Filter Set includes four 36mm unmounted LRGB 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.
The ZWO LRGB 36mm filter has better transmission, better coating, better color separation the RGB color combine weights will be approximately 1:1:1
Features of the ZWO 36mm LRGB Filter Set
- Fine-optically polished to ensure accurate 1/4 wavefront.
- More than 92% transmission at pass-band.
- 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 2mm.
How to judge the positive and negative? It is a little bit hard to judge the LRGB filter sides. Please review the pictures below carefully.