... (φ5.5mm)Pupil Distance55mm~75mmDiopter Adjustment-5D~+3DSlit Width0mm~14mm adjustable( slit is round when the slit width is 14mm)Slit ... Spotφ14mm,φ10mm,φ5mm,φ2mm,φ1mm,φ0.2mmFilterHeat Absorption, Grey, Red Free, Cobalt BlueInput VoltageAC220V±22 V,AC110V±11 VElectrical Safety ...