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Measurement function： Luminance(Y)
Lens focal length： f=85mm
Viewing field： 8°
Measurement distance： 0.4m~infinity（Close-up lens is optional ）
Viewing angle： 2°、1°、0.2°、0.1°
Minimum measured size（0.4m）： ~Φ11mm、~Φ5.6mm~Φ1.1mm~Φ0.55mm
Luminance measurement rangecd/m2(under standard A source)： 0.001~4000 000（different range at different Viewing angle）
Luminance measurement rangecd/m2(under standard A source)： ±2.5%±1digit/±3%±1digit
