Illuminati releases improved IM150 Bluetooth light meter

Updated smartphone-controlled light and colour meter promises improved battery life and meter accuracy.

Illuminati IM150

Illuminati Instrument Corp have announced an updated version of their Bluetooth-controlled light and colour meter. Originally funded on Kickstarter, the Illuminati IM100 is an incident light meter that connects to your smartphone and is capable of measuring exposure level and colour temperature of flash or continuous lighting.

The new IM150 promises the following improvements:

  • Improved color accuracy for LED lighting, especially above 5000K
  • More accurate and consistent strobe readings
  • More than double the battery life

Accuracy upgrades aren’t quantified, so potentially could say more about relative inaccuracy of the original IM100—but I haven’t tried it, so I don’t know.

Flash-specific features include the ability to ignore TTL pre-flashes, and to measure relative exposure levels, to perfect your ratios when using multiple light sources. The Illuminati IM150 is powered by AAA batteries and has a retractable dome, according to whether you are metering flat or three-dimensional objects. It’s fairly small and can be hung around your (or your model’s) neck, clipped or magnetically attached to different objects.

According to the spec sheet, you can meter flashes connected via a sync cord (3.5mm sync jack), or wirelessly (by waiting until it sees a flash go off). For ambient lighting, it’ll measure light levels continuous, or manually on demand. The unit pairs via Bluetooth 4.0 and supports devices from iOS 8.1 or Android 4.3.

Marketing literature promotes the Illuminati IM150 as ‘less than the cost of an inexpensive lens’, although the $399 price has increased over the original. You can find it at Adorama or B&H Photo. For more information, visit the Illuminati IM150 product page.

David Selby
David is a keen photographer and has been editor of Lighting Rumours since 2010. When not writing about lighting, he works as a data scientist at the University of Manchester, UK.