SMC coating, possibly different AF gearing. I doubt the zoom lock is new though as that's a common Tamron feature and uncommon on Pentax lenses.
-Adam On Thu, Jul 24, 2008 at 7:47 PM, MikeM <[EMAIL PROTECTED]> wrote: > I have read that the Pentax 18-250 lens is a rebranded Tamron lens, > with the addition of a zoom lock. Did Pentax change anything besides > the addition of the zoom lock? > > On my last overseas trip I used a K100D with the kit Sigma 18-50 lens > and an Olympus SP550UZ for the long shots and movies. The Oly worked > ok and I think the long shots, such as gargoyles on Notre Dame, with > it were generally ok, the biggest problem was in low light conditions > when it often took a long time to lock on and the usually very good > stabilisation didn't work too good. > > For my next trip I was thinking of getting a Pentax 18-250 for my > K10. I have read a lot of good things about it, but have also read > some reviews that make it sound like the distortion at the wide and > long ends are noticeable, possibly more than that of the Oly. I have > also read that because of the slowness, particularly at the long end, > it can take a while to focus in low light. Could anyone tell me how > the 18 mm shots with the 18-250 compare with those from the Pentax 18-55? > > I am trying to decide between using my 18-55 lens on the K10, which I > know produces good results, and continue using the Oly for long > shots, or getting the 18-250 and use the Oly only for video. > > Thanks > Mike > > > Note: To protect against computer viruses, e-mail programs may > prevent sending or receiving certain types of file > attachments. Check your e-mail security settings to determine how > attachments are handled. > > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and follow > the directions. > -- M. Adam Maas http://www.mawz.ca Explorations of the City Around Us. -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.

