Cine Meter II 4+

light and color metering

Adam Wilt

    • 4.3 • 19 Ratings
    • $24.99



Cine Meter II measures light and color, so you can light and shoot and know what you'll get.

“Cine Meter II is an essential app for every cinematographer.”
— Jon Fauer, ASC

“[T]he perfect app to have with you at all times.”
— Roberto “Ganzo” Schaefer, ASC, AIC

It's a zoomable spotmeter with an RGB waveform monitor and a false-color picture.

It's an incident meter using a Luxi™ or other diffusion, or Lumu™ Lite attachment, with lux and foot-candle readouts. (Lumu Power is NOT supported, and flash metering is NOT possible.)

It's a color meter, showing color temperature and green/magenta tint, and giving you corrections to or from your target color.

Measure more than just shutter-priority or aperture-priority: calculate shutter speed, shutter angle, aperture, ND, or ISO directly.

• The exposure meter shows your stop as a decimal value (for cameras with EVF iris readouts) or as a full stop and fraction (for cine lenses with marked iris rings). Cine Meter II lets you use shutter angles – ideal for Digital Bolex and Blackmagic cameras – as well as speeds, and you can dial in ND filters and arbitrary exposure compensations. The spotmeter is zoomable up to 15x magnification (on devices that support camera zooming), using either the front or back camera.

• The waveform monitor shows you how light levels vary across a scene. You'll see how smooth and even the lighting is on a greenscreen or background, and find subtle hotspots and shadows at a glance. The waveform’s RGB mode shows you color imbalances in the image and gives you a handy way to check color purity and separation for chroma-keying.

• False-color mode lets you define allowable contrast ranges, and see instantly which shadows are underexposed and what highlights risk clipping.


Cine Meter II is NOT a flash meter; it can't measure strobes.

Cine Meter II does NOT work with Lumu Power (the Lightning port Lumu), only Lumu Lite (the headphone jack Lumu).

Cine Meter II gives you *absolute* light meter readings, but *relative* picture and waveform monitor levels: Cine Meter II’s picture and waveform monitor do not use the *exact* exposure shown by the light meter (they are close to the meter reading, but can differ from it slightly). The picture and waveform monitor show you *relative* levels within a scene, not *absolute* levels based on the meter reading.

Shutter speeds, apertures, and ISOs shown in Cine Meter II are for metering purposes only and do not control the shutter speed, aperture, and ISO of the iPhone camera. The iPhone camera uses whatever exposure settings it needs to capture a reading. Cine Meter II is a light and color meter only; it is *not* a camera simulator.

See for details.

What’s New

Version 4,5

• You can display color readings as CIE 1931 x,y values: use Help & Settings > Show Chromaticity.
• You can fetch brightness and color data remotely using HTTP: use Help & Settings > Enable Web Server.

Ratings and Reviews

4.3 out of 5
19 Ratings

19 Ratings

JenLS ,

Most recent upgrade is broken

I love this app. To have a color temp meter for $25 + cost of a little white dome? Amazing!

Only thing, the app received an update a few days ago, and now it won't open. At all. I deleted it and downloaded it again, in case I had a rare corrupted copy — but nope. The fresh download is busted, too. There was a catastrophic bug that shipped in the last package.

I hope you are on it, Adam Wilt. I won't give you one star for a bug that will hopefully get fixed immediately (since low stars are forever). But, well, it's a zero star app at the moment, because it's working zero percent. Please fix soon.

Developer Response ,

I've downloaded the store copy on several iPhones, iPads, and iPods touch, and it's working normally on all of 'em; I can't make it crash for trying, whether they're updates or fresh installs, on my account or on others. PLEASE contact me directly ( so we can fix this! (Also, did you try the other troubleshooting steps at ?)

Sultawi ,

Great tool!

Cine Meter II is a very useful and accurate light and color meter for video and stills (both digital and silver).

It is an accurate spot meter (matches my venerable Pentax and my newer Sekonic perfectly after one calibration) and with a Luxi sphere works as an incident meter also (matches my Sekonic too, after calibration). Even better, it is a color meter, and seems *more* accurate than my old Minolta, matching my Kinos to cheap fluorescents.

While this won't replace my meters (but it probably could) I don't bother carrying my older ones any more...

The developer is super responsive too!

Craigo4000 ,

It is useful but not easy to use

Please make some simple tutorial videos - the documentation is overly wordy, dense and confusing - and spread over multiple webpages. I’ve read the docs several times and still having difficulty using this to match a light to ambient. It’s more of an interface problem than a technical one. For example, I just want to point it at one light (or ambient) and then point it at another light and have it tell me what I need to make it match. Maybe it can do this but I cannot find it.

Developer Response ,

You're right, I don't have a How-to for that. In a nutshell: measure one light; hit EXP LOCK, turn DIFFERENCE MEASUREMENT on, then tap the screen to lock the reading. While the lock is on, you'll see the difference between the locked reading and the current reading for both exposure and color. I hope to make some tutorial videos later this summer, but that'll depend on my work schedule, so I can't promise anything.

App Privacy

The developer, Adam Wilt, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

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