Michel Balut

Hi, I'm new in this forum and to the Sony FS5. I have to shoot a documentary in low light soon. I have read a lot about the problems of noise or artifacts on the FS5, I would like to shoot in Slog mode (2 or 3 ?) to take advantage of large range in post-production, is it a bad idea ? what do you think ? What settings would you recommend? and for a shoot in normal light ? Thank you