Originally posted by zvon I use Vanguard alta pro 263at with Vanguard ph-55 head. I made several very successfull pixel shifted images which were aditionally focus stacked. If you are expecting winds that could compromise the tripods stability and create vibrations I think that you won't get sharp images without pixel shift, let alone with it. Then again, if it will be so windy and you plan on shooting landscapes, then the trees and other objects in the sceene will probably be going wild and create artifacts that are known for pixel shift.
tripods you mentioned are not bad tripods (they are expensive though), im just saying that wind + pixel shift do not go well at all no mater how stable tripod you use, especially if you expect winds that tend to move your tripod.
That makes sense!
---------- Post added 11-23-15 at 01:03 PM ----------
Hi folks
Thank you for all your constructive advices. I think I have to give up the idea of using pixel shift at the current stage. As far as I know the current Pentax's pixel shift system doesn't work well. It takes 2-3 seconds rather than the desired, say 1/100s (4 x 1/400s) for a typical shoot. Pentax said in an interview that the coming full frame will have a more powerful pixel shift system onboard. I can wait for another half a year.
I won't take out the surveying tripod for a photograph. It is too heavy!
So what I am going to do is
1) watch over the American Black Friday to see if I can import a 1544T or 1545T or 2542T. Otherwise buy one from local stores. The tripod can be used for many years so I wouldn't mind paying more.
2) buy a 16-85 lens for travelling. This lens will still be usefull even if I have a full frame next year .
Thanks again for your input.