Hi, all. Does anyone have any opinions on the Sigma 28-105/2.8-4 ?
I'd like a faster autofocus 28-105 than the Pentax FA 28-105/3.2-4.5 or either of the FA 28-105/4-5.6's (although the 28-105/3.2-4.5 is marginally faster than the others). (This would be for use on an *ist DS.) However, I'm afraid of: 1. softness 2. flimsiness 3. bad bokeh I know very little about Sigma lenses (except for some generalities that may or may not apply to this particular lens). Any opinions? Thanks. [Gee - I really wish that Tamron made the 28-105/2.8 in Pentax mount.] Fred
