> > Thomas Bantel wrote: > > > Chip Louie wrote: > > > > > > At the risk of tweaking some people, IMO third party lenses > are simply not > > > as good overall and to offset this they must offer lower > prices to create a > > > place in the market. > > > > I'm not sure this is the whole truth. I suspect it's just the other way > > round: They must offer (similar speced) lenses at lower prices to create > > a place in the market and THEREFOR they have to compromise somewhere, > > be it build quality or optical quality or quality control. > > > > With Sigma, it has been build quality and/or quality control in > the past. > > Their last offerings, especially the EX line of lenses, looks > promising in > > this respect IMHO. And they have HSM (their USM equivalent), too. > > > > Thomas Bantel > > I have the Sigma 15mm fisheye and the 17-35 f2.8-4 EX HSM, and > while they are as > optically good as on could expect for distortion prone types, the > 17-35 focuses > pretty slowly. I have no experience with other Sigmas, but if > this one is a > "High Speed Motor," then the others must pe pretty pedestrian. > It is much slower > than, say, my 28-135 IS. > Skip >
Hi Skip, More good answers. Regards, Chip Louie * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
