The K100D and K110D digital SLRs were announced in May 2006, aimed as a straight replacement for the *ist DS series (actually the DS2) these two SLRs are designed to appeal to the affordable end of the digital SLR market but don't compromise on features. The only difference between the K100D and K110D are that the K100D includes Pentax's own CCD-shift type 'Shake Reduction' system, where as the K110D does not. The main differences between the K100D and the *ist DS2 are the slightly redesigned body, a move to a Penta-mirror viewfinder (as per the DL2, the DS2 has a Penta-prism), a reduced continuous shooting buffer, P-TTL only flash metering and introduction of in-camera Shake Reduction.