If you are thinking of bying a light meter or a color meter here's a solution to consider. Cine Meter II app for iPhone made by Adam Wilt costs around 25€ in iTunes app store. Luxi costs between 10-30€ depending on which version you buy.
Published February 15, 2017
Published July 31, 2012
Music video for Tuusanuuskat shot on iPhone 8mm app.
Published July 26, 2012
Photographs from "5 minuutin festivaali" in Tampere, Finland.