Product Description

The ZWO LRGB  36mm filter has better transmission, better coating,  better color separation

the RGB color combine weights will be approximately 1:1:1

• 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 effect of light pollution
• More parfocal – thickness  2mm

Technical Parameter:

Name: ZWO LRGB  36mm filter(4 filters)

Size: 36mm

Thickness: 2mm

here are the detailed photo

How to judge the positive and negative?

It is a little bit hard to judge the LRGB filters. Please watch the picture below carefully.

Transmission Curve