【Light Meter】Can measure light, K9 glass lens, 30° mechanical light control. The OLED display screen can display exposure value, aperture, ISO, EV value, etc. in real time 【Digital Ddepth of Field Scale】The "digital depth of field scale" is displayed at the bottom of the interface, which can accurately and quickly calculate the depth of field range under the focus and aperture of the current lens 【High Precision】About 30° average metering,single metering time ≤0.5s.Metering range: EV1.1~EV21;Aperture adjustment range: F1~F64;Shutter time adjustment range: 60s~1/8000s 【Cold Shoe Interface】The cold shoe base can be flexibly adjusted tothe position you want , no need to worry aboutthe light meter slipping off when switching between different cameras 【Compact and Lightweight】Metal aluminum body, side dial for easy operation. Cold shoe interface is suitable for various cameras, especially for people who use older cameras, rangefinder cameras, SLRs, etc., and can also be handheld for measurement