Light Meter Ultra

Turns an iPhone into a photographic light meter with aperture, shutter and exposure priority modes.

iOSApp Store (US)★ 4.7 · 738 ratingsfreemiumWorldwide

Light Meter Ultra turns an iPhone into a photographic light meter, giving manual-camera and film photographers precise aperture, shutter speed and ISO readings by pointing the phone at a scene. A free plan covers basic aperture-priority metering, while a Pro plan adds more metering modes, custom shooting profiles and reciprocity failure correction. It requires no extra hardware.

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