Meterology: GPS Light Meter
Exposure from sun and weather
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$2.99
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About
Meterology suggests a shutter speed and aperture for film and digital cameras from your location, the time of day and the current weather, or from a reading through the iPhone camera. The location reading estimates open outdoor light, so switch to the camera reading for shade, window light and indoor scenes. Choose your film to apply the long exposure correction its maker publishes, and choose your camera and lens so Meterology keeps to settings your gear can make. On Apple Watch, raise your wrist for a reading from location and weather, and keep your last exposure on the watch face.
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What's New in Meterology
1.0.1
November 9, 2026
Send to watch now puts your watch in phone mode with the same reading, lock, compensation and ISO. Double tap on the watch jumps to your favorite compensation, aperture and shutter. New motion throughout: the radar draws open, values roll into place, and the equivalents ribbon clicks at each stop. A shorter Settings menu that scales with your text size. A camera refresh button, and a steadier camera view. Improved readings in fog and at twilight, sharper sun times, and corrected film notes.
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