http://www.pentaxforums.com/forums/pentax-k-5-forum/127267-k-5-shutter-blur.htmlHave a look at the above test. The test is clearly described and the results are self-explanatory. See:-So, it can be quite safely concluded from the above that the mirror slap is an issue for the K-5 and it causes obvious blur in the final images, especially when a longer focal length is used. And, against what
