Light receiving method utilizes reflected light for accurate measurements. Wide light metering range from EV-1.1 to EV21, ensuring versatility in various lighting conditions. High sensitivity range from ISO1 to ISO8000, accommodating different photographic needs. Compact design with external dimensions of 38mm x 29.5mm x 14mm, making it portable and easy to handle. Built-in polymer lithium-ion battery with a quick charging time of about 1 hour via USB Type-C. Light receiving angle is approximately 30 degrees. Sensing element is a silicon photodiode array. Metering mode includes aperture priority metering, shutter priority metering, and EV metering. Photometric accuracy is ±0.1EV. Display range includes shutter speeds from 60s to 1/8000s and aperture settings from F1 to F64. Exposure compensation ranges from EV-2 to EV+2. Screen size is a 0.96-inch OLED display with a resolution of 128x64 pixels. The device operates within a working temperature range of -10°C to 60°C and a humidity range of 30% to 80%. Storage temperature is between -20°C and 70°C. Net weight is 26 grams. Color: Black Material: Aluminum Alloy Package Contents: 1*2R Film Camera Light Meter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.