51. IntroductionFOCUS Part Names of the ProjectorFront/TopNP610/NP510/NP410/NP405/NP310/NP305/NP510W/NP410WZoom Lever (→ page 32)Controls(→ page 7)LensLens CapBuilt-in Security Slot ( )*Focus Ring(→ page 33)Remote sensor(→ page 10)Ventilation (inlet) / Filter Cover(→ page 81)* This security slot supports the MicroSaver ® Security System.Adjustable Tilt Foot (→ page 31)Adjustable Tilt Foot Lever (→ page 31)Security chain openingAttach an anti-theft device.The security chain opening accepts se-curity wires or chains up to 0.18 inch/4.6 mm in diameter.NP610S/NP510WSFOCUSControls(→ page 7)LensLens CapBuilt-in Security Slot ( )*Focus Lever(→ page 33)Remote sensor(→ page 10)Ventilation (inlet) / Filter Cover(→ page 81)Adjustable Tilt Foot (→ page 31)Adjustable Tilt Foot Lever (→ page 31)Security chain openingAttach an anti-theft device.The security chain opening accepts se-curity wires or chains up to 0.18 inch/4.6 mm in diameter.* This security slot supports the MicroSaver ® Security System.