Originally posted by JinDesu
It's the new Tamron 24-70 F2.8. The SDM is just a label, the Tamron lens has very quick focusing and their quiet focusing motors have had a good history of reliability. Yes, unfortunately we only get 1 year warranty, but I'll take the lack of a markup on the lens for that price.
The actual Tamron comes with a 6 year warranty though, and their service has been good in my experience (NY state, 3 day turnaround time) to fix my 70-200.
Not complaining about the price, since it is just a rebadged Tamron, but just a 1 year warranty on that same lens, just a different mount? Hmmm. Knock on wood, I've really been impressed with my 16-85, but Pentax doesn't have a great track record with QA/QC.