Ridgelight: Sun & Moon Planner

Sunrise is not when the sun clears the ridge. Most sun apps time the light against a flat sea horizon. If you shoot in a valley, a canyon or a city, that answer is wrong by twenty minutes to two hours. Ridgelight reads the terrain around you and tells you when the light actually arrives. The few apps that do read terrain bury it inside a photography suite you have to learn first. This one does the one thing, on one screen. FIRST LIGHT AND LAST LIGHT - The moment the sun clears the skyline, and the moment it drops behind it - How much later that is than the flat sunrise every other app shows you - The angle of the ridge doing the blocking, and the direction it sits in THE SKYLINE, DRAWN - The horizon profile for where you are standing, all the way round - Where the sun appears and disappears, marked on it - Worked out by casting rays over open elevation data to 40 km, corrected for the…