Optolong SHO 3nm opening video,it's made from the amateur french photographer Ludovic CALAS, a famous youtuber,and he created a youtube channel focused on Astrophography called "PAUSE LONGUE" .
more video ,you can also look in his Youtube.
Our SHO Narrowband filters give you higher contrast and greater detailed viewing ,with narrow band filters kit ,you are able to process a hubble color image
