You probably can add the 70-200/F2.8 to the list of lenses that Sigma produces which are worthy of putting on your Pentax. I also have the discontinued APO 300/F4 and it is a very good performer. The 100-300/F4 is suppose to be just as good but I have never tried one.
A good substitute for the digital kit lens is the Sigma 18-125. It compares very favorably to the Tamron SP 24-135 which gets very favorable reviews. In fact I think I am going to sell my SP 24-135 since I do not see a situation where I would use it over the Sigma 18-125. On 2/10/06, Derby Chang <[EMAIL PROTECTED]> wrote: > > I am going to eat my hat. In Australia, because of the distributor > arrangement, when one buys a Pentax camera and kit lens, more likely > than not, it will be a SIgma rather than Pentax. In my naïve yoof, I > bought my first two cameras with Sigma lenses (a DL 75-300mm/4 and a > DL-II 35-80/4) which left me less than impressed, and I never use them. > > But my recent experiences with Sigma lenses are making me reconsider. > The 28-70/2.8 EX ASP DF is an amazingly good buy and a fraction of the > cost of the other f2.8 zooms. > http://members.iinet.net.au/~derbyc/index4/05_10_spring/index.htm > > The 20/1.8 EX ASP DG is sexy. Close focusing, the shallow DOF gives it > some unique creative possibilities. I love fast lenses and ambient light. > http://members.iinet.net.au/~derbyc/index6/06_01_corban/15.htm > > My newly acquired 12-24/4.5 DG is in a class of its own. It's actually > full frame (as are the other two, and I must try it on a film camera > soon). Distortion is pretty minimal, and it only vignettes when you use > it on a uniform subject, but otherwise unnoticeable. The strange slip-on > mount for the cap (and Petteri Sulonen missed the point that it can also > be used to mount 82mm filters, although they can clip the corners at the > wide end) is a quirky design feature that I like a lot. Haven't had any > PDML-worthy pics with it yet, but I'm sure they will come soon. > > All three lenses feel great in manual focus - not buttery, but very > precise. And I don't want to over-emphasize it, but their prices are > hard to resist. > > Nice toys to play with while Nguyen ramps up production for the new > Pentax lens range. > > D > > -- > [EMAIL PROTECTED] > http://members.iinet.net.au/~derbyc > > -- <----------------------------------------------------> Perry Pellechia Primary email: [EMAIL PROTECTED] Alternate email: [EMAIL PROTECTED] Home Page: http://homer.chem.sc.edu/perry <---------------------------------------------------->
