Sigma IA-Zoom 70-210mm f/4.0-5.6 Lens 52mm for Pentax AF | eBay
Sigma 70-210 f4-5.6 A Mount lens
Pentax HD PENTAX-D FA 70-210mm f/4 ED SDM WR Lens 21217 B&H
Amazon.com : HD PENTAX-D FA 70-210mm F4ED SDM WR: Telephoto zoom lens for DSLR cameras High-performance while maintaing constant f/4 aperture Weather-resistant construction min. focusing distance of 0.95 meters : Electronics
After Leaks, the Pentax D FA 70-210mm F4 Zoom Is Finally Official - The Phoblographer
Ricoh unveils HD Pentax-D FA 70–210mm F4 ED SDM WR telephoto zoom lens: Digital Photography Review
Amazon.com : HD PENTAX-D FA 70-210mm F4ED SDM WR: Telephoto zoom lens for DSLR cameras High-performance while maintaing constant f/4 aperture Weather-resistant construction min. focusing distance of 0.95 meters : Electronics