Tamron 28-200mm F3.8-5.6 for Pentax

The new 28-200mm, Model 171A, is loaded with state-of-the-art features, and can be used with more than 200 different 35mm SLR cameras, old and new. Furthermore, Tamron is launching a revamped cosmetic design with the introduction of this new lens, changing the zoom and focus ring patterns to improve overall handling ease.