Lumu Light Meter 4+

Light meter that works with the phone I’ve got on set anyway…awesome but the color meter feature isn’t very accurate at all. The reflective meter is accurate to within a tenth of a stop of my Sekonic meter, so that’s great and better than I expected. The spectrometer does a great job too. Where is falls short is in the color mode. Honestly the main reason I bought it. Small pocket sized tool that gives reflective metering and color. The accuracy is really really off though. Measuring outside in direct sunlight measures ~4300 kelvin…a true tungsten bulb measured about the same. Re-measuring an led source produces wildly different measurements every single time under the same conditions. Compared to my Sekonic C700 is laughable. Not that I expected this to be the same but this function (the reason I chose the pro version of the product) is so unusablely wrong that I don’t ever ever use it or would ever trust it.

I have nothing bad to say about the functionality of my Lumu Power 2. It gives me ballpark readings on outdoor ambient light on a daily basis for my job, shooting mostly landscape video. I mostly use it for color temperature, but after a recent app update I immediately lost functionality of my color meter. It will give me no readings and gives the error “cannot read CCT”. I tried a factory reset of the module through the app: it gives me an error and asks me to check my internet connection every time I try. I’ve tried chatting on iMessage through their website, DM on Instagram, and e-mail - I’ve received no response in well over a week. That’s just too long for me to receive no reply from multiple communication mediums and multiple follow-ups. I want to use this module and want to make it work (and will continue to) if they ever get back to me. If you’re looking for a product that does what it says and you’re not concerned with what to do if something goes wrong, then you’ll probably enjoy what it has to offer while it’s working.

The app plus the lumu sphere attachment is pretty good and could be great with some added features and tweaks. I was using it on a shoot today shooting 120 film and wanted to shoot on F/1.4 and wanted my exposure to be based off that criteria but the app only has shutter priority and ISO prioty; meaning it’ll lock down the shutter speed and ISO setting and only the F-stop changes. It would be nice to lock down the F-stop and let the shutter adjust to the selected criterias. This is a standard feature and should most definitely be available for a standard meter.

The other feature just needs a little tweak is when the reading or setting is out of range way over or under there is a warning that comes up on the top of the screen but it’s not obviously enough.