http://www.dpreview.com/news/1103/11030220pentaxs1.asp
To recall the memory, it would not be difficult to spot that Hoya has been using this "28" to "140mm" lens since the Pentax Optio H90, which was launched back to January 2010, followed by various Pentax DC models like Optio I-10, W90, M90, RS1000, NB1000 and LS1000 and etc.
The lens of this new DC has no SMC neither, i.e., the treasure of a true Pentax lens!
Yet once again, this new Pentax DC has nothing special. It is just too mediocre after all. Really bad! True disappointment here. :-(