Pentax Zoom Fisheye to Super Wide-Angle SMCP-DA 10-17mm f/3.5-4.5 ED Autofocus Lens user reviews (IF)

Pros Captures up to 180 degree views. Price. Sharp images. Exaggerated perspective can give interesting artistic effect. Compact design.

Cons Not particularly fast lens (f3.5-4.5). Exaggerated perspective - images are distorted.

Summary I have had this lens now for about 2 months and find myself using it more than any others in my kit. The images are sharp and the ability to capture a wide view without being a long way from the subject is very handy. The exaggerated perspective can give some great artistic results. It's also fun being able to tell a group of people to stand further apart when trying to get everyone in the photo, stepping in towards them before taking the photo, then seeing their stunned faces when you show them the image on the view screen of the camera with everyone easily within the field of view.
At 17mm the bending of straight lines is much less pronounced than on 10mm, more like a standard wide angle lens.
For the money, this is a great and very useful lens. If you have a Pentax digital SLR body, do yourself a favour and buy one of these lenses. You'll have a lot of fun with it. I certainly am.