Originally posted by RobA_Oz Not all of us wear cargo pants, you know. Some of us like to carry their Qs in shirt pockets, or light jacket pockets. Even with the 01 lens mounted, that makes for a bulky package. Every now and then, it'd be nice to be able to take the Q out of your pocket and just use it like a p&s, which you can't do if you're carrying the body (with plain cap) in one pocket, and the lens(es) in the other, as I do. That's why they bothered to do this. And how do you know how much time and effort Pentax put into developing this? If the verdict is correct, the answer may well be: "Not very much". I think I'll wait for a few user reviews before passing judgment. The Q's previously been well and truly worked over by several people in PF who didn't appreciate its value, along with some other products, like the DA18-135, for example. Need I say more?
If you don't mind making it yourself, making a hole in a body cap (one that latches on, not the crap they give you with the camera) and gluing a thin CS lens to it gives better images than this, and is quite a bit thinner than the 01. A bit thinner than the 05 (toy tele) too.
The one on the left is 2.8mm f/2. Cheap enough to use as a body cap lens too. (Around $6 IIRC.) It doesn't quite cover the sensor, but works well in square format. Here's a shot with it:
Ok, maybe "well" was overstating it. At least it has adjustable focus. (And at 2.8mm you have a much easier time of using it hyperfocal.)