LightMeter - Pro Light Meter

Turn your iPhone into a professional light meter. Measure light in real time and fine-tune ISO, shutter speed, and aperture for accurate exposure.

LightMeter is a professional exposure metering tool designed for photography enthusiasts and film photographers. It uses your iPhone camera to analyze scene brightness in real time and help you quickly determine suitable exposure settings.

【Professional Metering】 Supports spot, center-weighted, and average metering modes. Choose the method that best fits your scene and get real-time exposure guidance.

【Exposure Controls】 Adjust aperture, shutter speed, and ISO, with exposure compensation support to help you find the right combination for different shooting conditions.

【Real-Time Image Analysis】 View EV, color temperature, and Tint information in real time. The luminance histogram helps you understand highlight, midtone, and shadow distribution for more confident exposure decisions.

【Digital & Film Modes】 Switch between digital and film workflows. Film mode supports film presets and full-stop shutter settings, making exposure metering more intuitive for analog photography.

【Metering Hold】 Freeze the current metering result so you can continue checking the measured values while recomposing, adjusting camera settings, or changing your shooting position.

【Exposure Advice】 Get clear exposure references and shooting guidance based on the current metering result to help you make faster decisions in the field.

Whether you are shooting street photography, travel, portraits, or film, LightMeter is designed to be a simple, intuitive, and reliable light meter you can always carry with you.

LightMeter does not aim to press the shutter for you. It helps you understand light better.