Focal length F number (fixed) Minimum object distance When mounted on EV-G030B1 Horizontal When mounted on EV-G200B1 angle of view When mounted on EV-G200C1 Dimensions EL-HC1228-2M EL-HC1255-2M 12mm 2.8 5.5 0.25mm 21.6° 32.6° 32.4° Φ29.5x28.5mm