ZWO LRGB 2in

The new  ZWO LRGB 2in Filters has good performance in transmission, the high quality coatings offer good colour separation.

Fits the NEW ZWO EFW-5×2 and ZWO-EFW-7×2

Technical Parameter:

Name: ZWO LRGB 2in Filters  (4 filters)

Size: 2″

Thickness: 5 mm+2.5mm(thread)

Thread: M48*0.75

Thickness: 1.85mm

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 1.9+/-0.03 mm

here is the the transmission curve