LightMate AirPro Light Meter, Rechargeable Battery Life 20 Hours, High Precision Photography 3 Dials Retro Exposure Indicator, Compatible with Leica and Others Film Cameras, Black Metal

Easy-to-use 35-degree wide-angle metering angle. ±0.1EV metering accuracy. ISO1~ISO3200, 60s~1/8000s, F1~F64. Aperture Auto mode (A), Shutterspeed Auto mode (S), Manual Mode and EV mode (A+S). Manual trigger metering (Click M), auto trigger metering (Long-press M). Independent X ISO level can be set to values ​​other than those on the ISO dial scale (1/2/4/6/8/10). Exposure compensation function. 3 independent dials for aperture, ISO and shutter speed. Each dial has a tactile and audible feedback. Each dial has a half-stop resolution. Half-stop values ​​can be 1/3 or 2/3 stops. Ability to limit aperture auto mode and shutter speed auto mode to 1/3 or full stops. Over 10 "Exposure Indicators" for Manual Mode to choose from! Dual LED cardinal point indicators! Changeable to your favorite colors. Strong and durable full metal shell! Ultra-small size! Built-in rechargeable battery, charged with USB-C cable.Comprehensive battery life exceeds 20 hours, and it can stand by for more than 6 months when fully charged and turned off.