SUN AND WEATHER APPS
■ If you take light seriously you should stay on top of what it’s going to be like in coming days, and for that you need a weather app showing satellite imagery. Use this in conjunction with a sun-position finder. The best of these, like the Helios app shown below, even have a clinometer mode to show you exactly when and where the sun will clear whatever’s in front of you.
A sun-position finder like Helios, and a weather app that shows satellite views,
both help predict lighting