See this latest user report and SDM is actually the culprit for the problem(s) which the user is complaining about:-http://www.pentaxforums.com/forums/pentax-dslr-discussion/105420-remind-me-why-i-should-stay-pentax.htmlAs a reminder, for those Pentaxians who suffered and is suffering from the SDM failure and issue(s), please sign this online petition, you can contribute a little bit more to push
