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Measure light with Lux-o-Meter for Windows Phone

Lux-o-meter

You can now use your Windows Phone device as a lux meter thanks to a new app that has just released called Lux-o-Meter. It measures brightness or illuminance using the built-in light sensor. The sensor is usually next to the front-facing camera on your device. Go ahead and check where it is on your phone.

Head past the break to watch our hands-on video and walkthrough with Lux-o-Meter.

Lux is the unit of measurement displayed by Lux-o-meter. It goes from 1 all the way up to 65,536. A lux meter can be useful in photography and videography as it can help make sure scenes filmed in different light levels have a consistent brightness on screen. It can also be used to check whether a room is bright enough to meet any rules designed to protect workers, for example.

Lux-o-meter

Lux-o-meter is a free download from the Windows Phone Store. It displays ads on top that can be removed by upgrading to the Pro version. The upgrade costs $1.49. What would you use the Lux-o-meter for? Let us know in the comments!

QR: Lux-o-meter

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Reader comments

Measure light with Lux-o-Meter for Windows Phone

59 Comments

Tried it, as I said great idea to use the light sensor but it is very inaccurate. On a flat surface between 3cm I get about 500-800 lux difference, maybe its the sensor of the phone. Uninstalled though due to the absurd requirements like phone dialer, media libraries etc.

Cool gonna trying out the same on my device ill let you now if my findings are similar. I am using a NL 925.

Thats a good start for skeptic people like me :-) I posted a couple of questions for you when you have the time to have a look. Thanks

Very informative, thanks for the post; but I would advise the devs to then have 2 versions of the app in the marketplace, one add suported that Data mines the user, and one paid that only has access to the stuff it actually needs.

It does not matter that only the add requires the access, it only means that the adds are data mining you not the actual app, not much of an improvement if you don't want to be data mined.

 

No, you're not being data mined. It only uses the very minimum to provide the ad. And if the ad isn't used, the ad network doesn't even get called.

Work for a company that makes display technology. Will check it against a calibrated meter Monday... If its accurate it could be useful.

BTW, the app can go much higher than 65536. My record so far is ~180000 (with an LED flashlight right on top of the sensor).

I keep wondering why you're constantly promoting apps that want an endless number of permissions they don't actually need. All they could possibly want with these permissions is our data...

Does anyone at wpcentral care for privacy?

You are tottaly right, firstly microsoft should be more strict about the apps that are allowed to be in app store, we need quality not quantity, also websites like wpcentral that are trusted by so many people should push developers to be more ethical about WP ecosystem by promoting only ethical developers. We didn't buy android for these reasons.

How did you test it ? My 820 gave me very widely different readings in a few cm distance the first reading from the rest in various locations, but always in the same angle towards the light source

Would have loved to give this a try, but it says "Incompatible with your device". Lumia 1020 running 8.0. :(
Oh, and the permissions thing is kinda crazy. What does a lux meter need access to the music and photo library for??

I would not trust this versus a true meter, but it is great to have as a photographer and optics reviewer

CRAP!  Nothing in the article said it was exclusive to Windows 8.1

 

I hope its more accurate than all the decibel sound meters. They are all wildly wrong when I compared against a sound meter. Unlike my friends iPhone app which was spot on.

An iteresting app; but it seems like a data mining App from all the crap it wants access to, so no thanks, until it's updated to use only stuff it actually needs.

  • owner identity
  • music library
  • photos library
  • media playback
  • data services
  • phone dialer
  • movement and directional sensor
  • web browser component
  • internet connection
  • videos library