Excellent quality. The body seems to be mainly metal
18 January 2015
Summary: Excellent quality. The body seems to be mainly metal. Lens is sharp throughout the range. Zoom seems to feel lose, but then again I bought mine used so that may be the issue. Doesnt interfere with function.
Summary: I just recently migrated to Pentax from a Canon system. As you know, Canon has some really good lenses, but most are big and heavy. When I purchased my Pentax K-5 IIs I also decided I would switch over to primes, or small zooms.
Summary: The lens is sharp throughout the range, even at f4. Makes an excellent walk around lens. I also considered the Tamron 17-50 f2.8. I happened to find this at a good price so I bought it. I may update to a Tamron later only because it is a stop faster.
Excellent lens, with a very good contrast and a useful 24mm equiv wide angle.
22 January 2014
Summary: I use it 90% of the time on my camera. It is an excellent choice as a walk about for those who prefer wide angles. 16mm is enough for even serious landscapes, and range up to 45mm is just enough for general shooting.
An excellent all-around lens - great upgrade from kit lens
Prodigal Knot, Amazon
26 June 2013
Summary: This is quite a nice lens in all respects. It consistently produces the famous Pentax colors and provides much improved clarity over the 18-55mm kit lens. It can be a bit soft in the corners at 16mm, but overall, it provides outstanding landscapes and at the narrower end provides a decent natural...
Summary: When I ordered my Pentax K5, I ordered the 16-45mm lens instead of the standard 18-55mm kit lens. At first use, it seemed OK, but each time I used it I was getting better results both indoors and outside. Recently, I used it for some seascape and landscape images while on a camera club field trip.