On Sat, Jul 09, 2005 at 05:12:26PM -0400, Mark Roberts wrote: > Powell Hargrave <[EMAIL PROTECTED]> wrote: > > >I have the Sigma 50mm Macro EX and couldn't be more pleased with it. Sure > >I would prefer the equivalent Pentax but I'm happy to have paid 1/3 the > >price. Sigma has had poor, lower quality, non compatible lenses in the > >past but do any of the newer Sigmas still have these problems? Most > >reviews I have seen of the EX and DG seem to report at least good results. > > > >So has anyone had poor results with a late model Sigma lens? > > I had the 28-135 "consumer" zoom for a while. Seemed as well built as > comparably-priced ($200.00) Tamrons & such; quite sharp; suffered from a > little pincushion distortion at the long end. > > I currently own the EX 300/2.8 APO. Outstanding construction and optics.
That's good to hear. Do you use it as an AF lens most of the time? I'm not sure I want AF badly enough to pay the $4500 for the Pentax lens, but I might consider the Sigma at around half that, especially since I would be able to sell my A 300/2.8 to go towards the cost. Does anyone else have this lens? If so, have you used it with the Sigma EX APO TCs (either 1.4x or 2.0x), especially in AF mode?
