The new ZWO LRGB 2in Filters has good performance in transmission, the high quality coatings offer good colour separation.
Fits the NEW ZWO EFW-5x2 and ZWO-EFW-7x2
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
