What Digital Camera tests the Pentax smc DA 50-135mm f/2.8 ED (IF) SDM lens to find out if it's as good as the price suggests.
35mm Equivalent Focal Length:75-202mm
Lens Construction:18 elements, 14 groups
Number of Diaphragm Blades:9
Lens Mount:Pentax KAF
Sample Photos: See sample image gallery