The parameters of 850nm filter are as follows
Square: 4.5 / 6.2 / 8.2 mm (Square: 4.5/6.2/8.2mm)
Thickness: 0.55mm
Central wavelength: 850 + - 10 nm
Half bandwidth: 30nm
Peak transmittance: > 86%
Cut off depth: Color and material: mirror glass