Feature: 1. 2 Priority Modes: The camera photometer supports 2 modes of aperture priority and quick door priority. 2. Good Practicability: The photometer adds a metering mode with shutter door priority, with strong practicability. 3. Applicable Situation: Suitable for equipment with insufficient space on the left side of cold shoe or hot shoe. 4. ABS Shell: The photometer shell is made of excellent ABS material, which is light and portable and easy to carry. 5. Clear Display: Display through 0.96in organic light emitting diode, about 30° average reflection measurement. Specification: Item Type: Light Meter Material: ABS Model: HY-201X Measuring Angle: About 30° average reflection measurement Display Mode: 0.96in Organic Light Emitting Diode Battery Model: Lithium battery (built in battery) Battery Capacity: 330mA 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, 73, 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. Package List: 1 x Light Meter1 x USB Cable Note: Do not overload use.