ZWO 1.25" LRGB Imaging Filter Set for CMOS Cameras - LRGB1.25NEW

This set of ZWO LRGB 1.25" Filters is optimized for CMOS cameras, including the ASI1600.  The set includes a red, green, blue and luminance (aka IR-CUT) filter in a 1.25" threaded format.

Compared to the original LRGB set by ZWO, this one has better color balance, as well as better transmission and coatings.  They are designed to equalize the flux of a CMOS camera sensor.  Each filter is fine-optically polished to 1/4 wave and then multiple layers of anti-reflection coating is applied.  Here are some additional highlights and specifications of the ZWO LRGB Imaging Filter Set:

• 92% + transmission at passband
  
• RGB color combine weights are approximately 1:1:1
  
• Infrared wavelength 700-1100 nm cut-off
  
• Precision off-band blocking
  
• A small spectral gap minimizes the effects of light pollution
  
• More parfocal - 1.9 mm +/- 0.03 mm
  
• Size is 1.25" with M28.5 X 0.6 threads
  
• Thickness is 5.5 mm + 2.5 mm for the threads
  

Please note that while the transmission curves of OIII, Ha & SII are shown in the graph, this LRGB set does not take the place of actual OIII, Ha, & SII filters when doing narrowband imaging.