Optolong L-eNhance Light Pollution Filter 2" Mounted

Here's a cool comparison with a HyperStar C9.25 using no filter, a L-Pro Light Pollution Filter, and the new L-eNhance Filter from Optolong. The L-Pro has a 53% reduction of background light, and the L-eNhance has an amazing 91% reduction. Imaging Target： Rosette Nebula Camera : ZWO ASI294MC Pro Lens : HyperStar C9.25 Filter : Optolong L-eNhance Exp time : 20 x 120" Taken by Starizona's: Scott Tucker Taken with 98.63% full moon Imaging Target： North America and Pelican Nebulas Camera : ZWO ASI294MC Pro Lens : Samyang 135mm f/2 Filter : Optolong L-eNhance Exp time : 20 x 60" Taken by Starizona's: Scott Tucker Imaging Target： North American Nebula Camera : ZWO ASI183MC Pro Lens : HyperStar C6 Filter : Optolong L-eNhance Exp time : 60 x 45" Taken by Starizona's: Steven Koenig Camera : CentralDS Astro A7s (cooled at -2C) Lens : Canon EF 300mm f/4L (non-IS) Filter : Optolong L-eNhance ISO : 6400 Tracker : Star Adventurer Autoguide : none Exp time : 1min X 81frames w Dark, Bias frames Offered by Optolong co-photographer Vincent Cheng After a simple red structure transformation, the effect of SHO Hubble color can also be simulated. ! Substrate:B270 Thickness:1.85mm Tpeak:T>90% Blocking range:300-1000nm Blocking depth:light pollution line blocking >99% Surface quality:60/40 Transmitted Wavefront RMS:λ/4 Parallelism (arcsec):30s