Brandx posted these photo's of his lenses for people (In DP Preview) to see the difference in size. I just thought I'd show people here if its ok?
I can't believe how much bigger the 150-500 is to the Bigma. Is that because of the HSM?
Left to right: Sigma 150-500mm on a K20D, Sigma 50-500mm on a K100D, Sigma 170-500mm on a K10D, Pentax-A*300/4 + 1.7X AFA on a K10D, and for comparison the Pentax DA 50-135mm on a K2000.
Extended
