Cine Meter

SEE the light: Cine Meter gives you an RGB waveform monitor and a false-color picture in addition to a cine-style, shutter-priority reflected light meter, using the camera in your iPhone / iPod / iPad.

• The light meter shows you your stop as a decimal value (such as f/5.0, good for cameras with EVF iris readouts) or as a full stop and fraction (like f/4.0 ⅔, good for cine lenses with marked iris rings). You can calibrate Cine Meter to match other meters to a tenth of a stop.

• 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.

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

READ BEFORE YOU BUY:

Cine Meter is NOT a color-temperature meter; it can't measure white balance.

It's NOT a flash meter; it can't measure strobes.

It's designed solely for cine/video work and isn't optimized for still photography; for example, it's shutter-priority only.

Cine Meter gives you absolute light meter readings, but relative picture and waveform monitor levels:

1. Cine Meter’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.

2. You can't preset exposure or color temperature in Cine Meter. To compare exposures and colors, you lock Cine Meter’s auto-exposure and auto-white-balance settings while looking at a known good reference, such as a gray card. The picture and waveform monitor then show you levels and colors relative to your locked settings.

See http://www.adamwilt.com/cinemeter/details.html#How_It_Works for details.

(Why am I telling you this? I would rather have you understand these limitations up-front and not buy Cine Meter, than have you buy Cine Meter unaware of them and be disappointed.)