Head and shoulders above the crowd is The Photographer’s Ephemeris.
Odd name, great app.
— National Geographic

The Photographer's Ephemeris was conceived in 2008, following a weekend landscape photography course in Rocky Mountain National Park, Colorado. After a classroom session that required use of paper-based topographic maps, protractor, calculator, pencil and ruler, it seemed like an equivalent digital tool built on internet mapping services might be something whose time had come.

The original TPE for Desktop was released in beta in March 2009, and quickly found a following online. An iPhone app was released in April 2010, and was expanded to include a dedicated user interface for iPad tablets later that year. TPE for Android was released in November 2011.

In September 2014, the original TPE for Desktop was replaced by a modern, browser-based web app. The new app supports all the features of the original, but offers the opportunity for much easier integration and linking with other apps in the TPE family and beyond.

Our iOS app reached version 3.0 in early 2015, and has been enhanced significantly over the past year to include Location Synchronization, Skyfire, Night Mode, and more.

We've also expanded our portfolio by adding The Photographer’s Transit, a digital field of view and shot planning application and released a new app The Photographer's Ephemeris 3D, the ultimate tool for landscape photography planning and visualization.

Since its original release, TPE and its sister apps have been used by hundreds of thousands of photographers, both amateur and professional, in over 220 countries around the world to plan some of the most distinctive photographs of our times.


The Photographer’s Ephemeris is a registered trademark of Crookneck Consulting LLC.

Photoephemeris, The Photographer's Ephemeris 3D, The Photographer's Transit are trademarks of Crookneck Consulting LLC.

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