The Lumu light meter dongle turns your iPhone into a light meter.
Even for photographers who would not even think about taking pictures
with a smartphone camera the mini computer in your pocket can be, with
the right accessories, an extremely useful tool. The Lumu light meter is
a great example for this. The tiny device plugs into the headphone
socket and, with the help of the dedicated Lumu app, turns your
smartphone into a fully-fledged light meter that can help enhance your
understanding of a scene's lighting situation.
So far the Lumu has only been working as an incident light meter which reads the light falling on the subject rather than the light reflected off
the subject. This gives generally a more accurate reading than the
reflective built-in meters in most digital cameras. However, in certain
situations, for example when shooting with an older film camera that
does not come with a built-in meter, having an external reflective light
meter at your disposal can be very useful as well. Therefore Lumu has
now updated its app for it to work as a reflective light meter, turning
Lumu into a pocketable and affordable solution for all your light
metering needs. In reflective mode the Lumu app uses the iPhone camera
rather than the Lumu hardware dongle to measure light levels. So even if
you don't own the attachment, you can still use the app.
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The Lumu device is tiny and can be carried anywhere.
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It slots into the headphone socket of your smartphone.
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Apart from the addition of the reflective meter mode the Lumu app has
also been optimized for use with the latest iPhone models 6 and 6 Plus.
There is also an Android version but Lumu has ceased support for the
Google mobile OS. That said, you should still be able to use the Lumu
Dongle and incident meter mode with many current Android phones. We've
tried the Lumu meter with the iPhone and have found it to be a precise
and useful tool in our testing. If you think it could be useful in your
photographic workflow head over to the Lumu website now.
The company is offering a 30% discount on the dongle for a few days to
celebrate the first anniversary of its successful Kickstarter campaign.
The Lumu app is available for download in the Apple App Store.
