The reveni light meter was invented by the Canadian Matt Bechberger, engineer and passionate about photography.
He has developed a miniature light meter of just 8 g to compensate for breakdowns and malfunctions of old cells.
Here is the presentation video used during his campaign on Kickstarter. A successful campaign, since it generated CAD 124,342 compared to CAD 10,000 expected.
Big highlight of this accessory, compared to a handheld light meter, its size, it is a big piece of sugar of only 22x21x17mm and which does not weigh 10 g, 8 to be exact.
A light sensor, with a 45° opening at the front, an OLED screen at the back and selection buttons on the top constitutes the device sold 125 CAD for pre-order, that is to say a little more than 80 €. To operate the Reveni light meter needs a simple LR44 battery.