The light metering tool for every great image maker.
Use the standalone app as a reflective light meter or use it in combination with Lumu Power hardware for professional Flash and Color Temperature measurements.
Lumu Power is an easy-to-use digital incident color and light meter that works seamlessly with the free Lumu app to deliver Color Temperature, Illuminance, Spot, Ambient, and Flash Exposure metering functionality on your iPhone.
A new expression of what a light meter can be, Lumu meets the needs of enthusiasts, professionals, and students who find existing light metering solutions too bulky, expensive, and complicated.
“The Lumu Power is without any doubt the most full featured light meter I have ever owned. It’s tiny, it weighs hardly anything, it manages to offer a feature set that expands way beyond what most will ever need from such a device.” - www.35mmc.com
Key features:
- SPOT METERING: Use your phone’s camera as a reflective light meter.
With Lumu Power:
- PHOTO SINGLE mode: Giving you exact parameters: exposure time, f-number, ISO, EV, lux.
- PHOTO MULTI mode: Calculating average value or contrast between multiple measurements.
- PHOTO PINHOLE mode: Measuring exposure time for custom pinhole camera settings.
- CINE/VIDEO mode: Set FPS, F-number, exposure time and ISO. Get the values for the ambiental light.
- FLASH EXPOSURE: See the graph of flash duration, measure its intensity.
- COLOR TEMPERATURE: Read light Color temperature in Kelvin and Green/Magenta shift.
- CHROMATICITY: See light colour in CIE1931 diagram and get X,Y,Z coordinates.
- ILLUMINANCE mode: showing incident light level in lux / foot-candle values.
- NOTES: Store all your measurements together with geo-location, custom notes and your photo in one place.
+ ND FILTERS, EXPOSURE COMPENSATION and more…
Visit http://lu.mu/ to learn more.
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Lumu Light Meter FAQ
Is Lumu Light Meter free?
Yes, Lumu Light Meter is completely free and it doesn't have any in-app purchases or subscriptions.
Is Lumu Light Meter legit?
🤔 The Lumu Light Meter app's quality is mixed. Some users are satisfied, while others report issues. Consider reading individual reviews for more context.
Ive been trying a bunch of lightmeters for iphone most of them has an awful ux and bad design (for my taste).
Lumu is a great combo between comfortable and quick usage in a field and a great minimalistic interface. I used it for a couple of years in a pair of my sekonik spotmeter and finally switched to the app.
Highly recommend!
The best on a market
I’m really happy we found this app. Helper with our old Minolta
light meter
сравнительно точный. в сравнении с камерой сони алфа, пересвет на шаг
No setup instructions it is trash
How do you set a fixed ISO? No instructions, nothing, nada, zip. Deleting app as it is pointless and useless for film.
Honestly
I first downloaded this at the beginning of my film journey, helped me walk through the door. Now, as a creature out of habit, I still use this app. I’ve learned the nuances of it, so after I meter for the highlights and or shadows I just kinda “have a feel” for it now and use it as a referencing point. And honestly, isn’t that what any light meter app is for with film? Just to give you a stable referencing point for you to play off of?
Great but
Great but one broke they would not replace it so I bought another.
My Primary Meter
This is a fabulous and convenient product that I use on every photoshoot. The color meter mode is essential for my architectural work, and replaces my Gossen color meter. I rely on the incident meter mode as a starting point for my interior shots.
Discontinued product. Do not buy.
Their website is still up and transacting. Do not buy. They do not respond to support or any requests.
This was super convenient. Bummer they shut down operations. They could have at least turned off their website, social media, etc so everybody would know they’ve closed operations…
No Longer Works
I purchased a Lumu Power Light Meter in 2017 and it’s been working great till the past two months. I’m able to connect the device to my phone and it seems like it’s working, but the color temp readout option doesn’t appear any more. I tried re-installing the firmware on the device from the app, then restore purchases, and even tried to buy the color temp option again. No luck. Contacted support three times now, and have not gotten a reply. Used to be a great product and app, however it’s gone south. Look elsewhere if you want to have a product that lasts. Sad.
Good overall but have some space for improvement
I like the simplicity of this app and the minimalistic design. The only thing that I would like to see is aperture priority mode.
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