The KR-10 Super was introduced by Ricoh in 1983, as a significant revision to the previous KR-10 (without suffix). The changes include expanding the range of slow shutter speeds from 4 to 16 seconds; moving the shutter release to be concentric with the shutter-speed dial; and changing to an electronic self-timer with a front-facing indicator LED. (It shares some of this DNA with the more stripped-down XR 500 Auto.)