Summary: I've had really good luck image quality wise w/ my 02 zoom lens. I'm posting some samples - I will not hesitate to use this lens as the picture quality is great and it focuses fast. I'd offer to share some photos that I've taken w/ the 02 to help demonstrate it's quality but I am unable to do so - maybe because Amazon is not the seller and it's only available through third parties?
Summary: The lens came without packaging and no warranty. I tried the zoom but the autofocus did not appear to work. The lens appeared to make a strange noise when powering on the unit. focusing also appeared to be an issue. The seller advised me contact the manufacturer for repairs!!!
Beautifully built, but not an essential purchase for Q owners
Nathan D Jedinak, Amazon
1 August 2012
Summary: The first thing you notice when you handle the Q Zoom is the quality--this is one of the smoothest zoom lenses I've ever used, regardless of price. Although the manual focus ring is a little less of a quality feel, being light plastic and prone to scratching, much of the res of the lens is metal or heavily built, and the zoom action is very well damped giving a very luxurious feel.
Good build quality, probably the lens that most consumers want for their Q
Michael A. Duvernois, Amazon
17 February 2012
Summary: On the Pentax Q itself, do see my review here on Amazon. For most prospective Pentax Q users, they'll be coming from a compact camera and will be used to a general purpose zoom on that lens. While the included 8.5mm (47mm in equivalent on a 35mm body) fast prime lens is quite nice, it's very different from what most folks are used to. Hence this lens.
Summary: The Pentax Q is an odd camera. It tries to pretend to be like a SLR with interchangeable lenses, but sports a tiny compact camera sensor. It's small with the 50mm prime lens but still too big to put in a pocket. With the zoom lens the Q becomes more versatile but gets even bigger - big enough to mean you'll probably end up using the zoom lens as a carry handle. The zoom lens is well made, robust and has a smooth zoom action.