Hi Pentaxians,
I'm planning to buy the DA18-135 lens for my k-x. The only lens I currently have is the Sigma 30mm/f1.4. I have sold my DA17-70 because of the reach (wide angle is ok but 70mm max. focal length turned out to be too short for me) and the fact that the SDM autofocus didn't always focus reliable. Manual focus is not practical with kids moving around so autofocus has to be perfect reliable in my next lens.
I have read a lot about the DA18-135 but following questions haven't been answered for me yet.
1. Does the k-x internal flash interfere with this lens, resulting in a shadow when using shorter focal lengths, if yes on which focal lengths? (I also have the Pentax AF540FGZ external flash but sometimes it's convenient to use the internal flash).
2. What may I expect in regard to lens creep? For Sigma/Tamron zooms lens creep is generally known, but does this Pentax superzoom also creep after a certain period of usage? It has no lock on the lens barrel.
3. Is vignetting visible with this superzoom lens? Reviews on test charts show up some vignetting but what are your experiences when real life shooting?
4. What are your experiences with lens flare resistance, is it necessary to use a hood in (sunny) daylight?
5. Recently Pentax also has released the DA18-270 (derived from Tamron's 18-270 PZD), how does this compare to the DA18-135? Which of these lenses is favorable for an 'one zoom lens shooter' ? I don't plan to buy more zoom lenses.
Hope you can answer my actual questions left.
Thanks!
Last edited by Bandit2006; 12-24-2012 at 07:39 AM.