A digital camera imaging lens includes first, second and third lenses arranged in sequence from an object side toward an imaging surface side. The liquid ejecting head includes a flow path member which is formed of ceramic, and in which the pressure chamber is formed; and a piezoelectric element which includes at least a first piezoelectric layer which is formed of ceramic. A means and a method is disclosed for locking a pistol in a sale condition by arresting the movement of the hammer spring buffer through insertion of a locking shaft through the pistol grip housing which can be keyed to prevent unauthorized removal of the locking shaft. A feed-belt adjuster moves the upper feed belts transversely of the direction and sets the upper feed belts in any of a plurality of different transversely offset positions. A whitepoint value of each pixel in the image is determined by interpolating the determined whitepoint values of neighboring tiles. At least one of the metal components of the spark plug is provided with a paint coating that serves to protect the spark plug from corrosion.