Pentax 20-35mm f/4 AL SMC P-FA
(From Pentax lens literature) The SMC P-FA 20-35mm f/4 AL compact zoom lens covers angles of view from an ultra-wide 94 degrees at the 20mm setting to a wide 63 degrees at 35mm. It incorporates two aspherical lens elements to reduce distortion and produce sharp, crisp image reproduction. Like all Pentax-FA lenses, it is treated with Pentax's acclaimed SMC coating for maximum light transmission, sharp definition, and high contrast, while minimizing flare and ghost imaging. Extremely flexible, this lens is ideal for shooting panoramic landscapes and tall buildings.
Pentax 20-35mm f/4 AL SMC P-FA User Reviews
8 out of 10 points and recommended by dppa (3 reviews)Great image qualityNot that flare resistant (for a Pentax lens)
A great lens, very good for traveling because it's quiet light. Probably also a geat lens for DSLR.reviewed December 23rd, 2006 (purchased for $600)
Sold it some time ago and will probably regret it when buying a K10D.