The D30 has been built from the ground up by Canon and uses a 3.25 megapixel (15.1 x 22.7mm) CMOS sensor that captures 36-bit full color 2,160 x 1,440-pixel images and stores them in standard JPEG format or in Canon's RAW format. Accurate color reproduction is attained through the use of an RGB primary color filter. The D30 features a Canon EF mount and can use the more than 60 Canon EF lenses or compatible third-party lenses.
The JUMP button is used during playback, it jumps the display forward or backwards 10 pictures at a time, cutting the time required to find & display a particular picture. Very useful when reviewing pictures captured on a high capacity memory card, where there might be hundreds of images to look through.