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Designed as an aid to Cinematographers and Stills Photographers working in natural light, Helios is essential to anyone who needs to plan a day around the constantly changing character of sunlight. Gaffers, Grips, Location Managers, Production Designers and First Assistant Directors will already be aware of the value of this information.

Utilizing algorithms created by the National Renewable Energy Laboratory and The National Geophysical Data Center to predict the sun’s movement (including nutation offsets) and magnetic declination, Helios is accurate to a tiny fraction of a degree.

Helios operates in 3 modes:

• HelioMeter is a graphical representation of the sun’s position on a compass dial (azimuth) for any time of day, showing the sun’s elevation and proportional length of shadow an object would cast.
• SkyView is an overall view of the sun’s path in the sky through the day.
• Inclinometer View predicts the sun’s height at any given time in the day. Essentially an electronic inclinometer that reads in both time and angle.

Requires: iPhone/iPod Touch. iPhone OS 3.0 +

Download Helios 2.2 Here.

Learn more about Helios 2.2 Here.