Mea Camera Obscura app analytics for December 18

Side by side with you in your darkroom, start at the develop and advise you with sound periodically or before the end of the baths (stop, fixing, etc.); another sound at the end of the baths. All without need of manual intervention. Became a safe light with a single tap, while continuing to count the running time or times. Also as a dark green light to inspect film.