Luxi is a small diffusion dome that fits securely over your iPhone’s front-facing camera. When attached and used with a light meter app, Luxi will help you determine the best settings for your DSLR or ...

Our smartphones have replaced a lot of things over the years, but not all of them are obvious. It’s easy to recognize how they have replaced clocks, calculators, MP3 players, and even standalone ...

I have a need for a not particularly accurate light meter, basically to rate light fittings against each other. I thought there might be an app or two to do this, and there are. Does anyone have an ...

Can a smart phone light meter really be every bit as good as a dedicated professional device? Erik Vlietink takes a good look at the Illuminati from Illuminati Instruments. App-based light meters that ...

This is our second activity that requires the use of a smartphone or tablet. Please let us know what you think. E-mail [email protected] with feedback about the use of technology in this—and ...

Gauging the amount of light that's in a scene is one of the most fundamental and important skills for a photographer to have. Knowing how to set the exposure on a camera will produce a picture that's ...

Dip into the complex metering modes on a modern digital camera and it’s easy to forget that photographers once relied on dedicated handheld devices to meticulously measure light before firing the ...