Ricoh GN-1 Ring Cap (Black). Ricoh I-USB166 USB Cable. The Shake Reduction System has been optimized for use with the built-in 28mm-equivalent lens, which renders it smaller and more effective. In addition to full-resolution, wide-angle images, a pair of useful crop modes—35mm at 15MP and 50mm at 7MP—let you simulate the look of working with longer focal lengths.