Feature: 1. Lightweight and portable for convenient and easy carrying. 2. Suitable for equipment with insufficient space on the left side of cold shoe or hot shoe. 3. Designed with fine quality material for long service life. 4. Four-button operation. 5. A minute without operation, it will automatically shut down. Specification: The light meter is an instrument used to accurately determine the amount of exposure required by the subject. Features: Lightweight and portable for convenient and easy carrying. Suitable for equipment with insufficient space on the left side of cold shoe or hot shoe. Designed with fine quality material for long service life. Four-button operation. A minute without operation, it will automatically shut down. Specifications: Color: black Material: plastics Metering angle: 32° (reflective) ISO: 6-6400 Shutter: 8S-1/2000 Aperture: F1-F64 Metering range: 2-18EV Exposure compensation: ±3 files Battery: 3.7V, 120mAh Parameter range: ISO: 6,12,25,50,64,80,100,125,160,200,250,320,400,500,600,800,1600,3200,6400 Aperture priority mode: F:1, 1.2, 1.4, 1.8, 2, 2.4, 2.8, 3, 3.2, 3.5, 4, 4.5, 5, 5.6, 6.3, 7.1, 8, 9, 10, 11,13, 14, 16, 18, 20, 22, 26, 28, 32, 36, 40, 45, 52, 56, 64 T:1, 2, 3, 4, 5, 6, 8, 10, 13, 15, 20, 25, 30, 40, 50, 60, 80, 100, 125, 160, 200, 250, 320, 400, 500, 640, 800, 1000, 1250, 1600, 2000 Shutter priority mode: T: 1,2,4,8,15,30,60,125,250,500,1000,2000 F:1.0,1.2,1.4,1.8,2.0,2.4,2.8,3,3.2,3.5,4.0,4.5,5,5.6,6 ,6.3,7.1,8.0,9,10,11,13,16,18,20,22,25 Item size: 30 * 27 * 18mm Item weight: 12g / 0.4ounce Package size: 85 * 85 * 40mm / 3.3 * 3.3 * 1.6in Package weight: 70g / 2.5ounce Packing List: 1 * Light Meter 1 * USB Cable Package List: 1 * Light Meter 1 * USB Cable