TPE helps you plan outdoor photography in natural light.
See how the light will fall on the land, day or night, for any location on earth.
The Photographer's Ephemeris iOS
Our premier app for iOS, TPE offers a rich set of planning tools for landscape, cityscape, outdoor, architectural and night photography. Learn More →
The Photographer's Ephemeris 3D
For landscape photographers shooting in varied terrain, TPE 3D is a unique visualization tool showing sun, moon and night sky against the terrain with simulated lighting and shadows. Learn More →
TPE for Android
TPE for Android offers the essentials for sun and moon photography, plus some handy features such as offline maps and light pollution map overlay. Learn More →
Tpe Web App
Just getting started with TPE? Use our free web app directly in your browser and take your photography planning to the next level. Get Started →