Bernard, can you enlighten me on your comment:
I don't know much about stitching with digital gear so I may have to do some reading. Are you saying that with stitching + Helicon Focus software, you are able to achieve enough dof for landscape shots, which eliminates the need for a tilt lens?
How practical is digital stitching and using this software in the real world....picture the Australian outback..hot...damn hot...flies...lots of flies. How much slower is this method of working in comparison to using tilt lenses on a digital body?
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We are speaking about 2 different techniques:
1. Stitching. When doing multi-row stitching you can change the point of focus from one row to the next, which - when done carefully - can result in virtually infinite DoF as long as the foreground is not super close.
2. DoF stacking. With this technique, you take a number of shots from the same point with different focus points.
If you have subjects that don't move with the wind too much, then this is really easy to use. When you have subject movement, it might require more work.
It does of course slow down the shooting, but then again setting up a T/S lens isn't super fast either.
I believe that T/S lenses can still be useful in some cases, but as of now my assessement is that digital manipulations are more bang for the bucks for my type of shooting.
In light of the landscape scenario above, how convenient is a digital back like the ZD. Isn't the 1dsIII just more practical for such conditions?
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The main problem with the ZD is cold weather because of the battery life, and long exposures. If you shoot in hot weather you will have no problem with the batteries, you might want to double check how the sensor works when it is very hot since I have never used my ZD above 35 C.
Otherwise, a 1ds3 is of course much faster to use and has a much nicer user interface than the ZD, more options in terms lenses (even if Canon wides are only average performers), etc...
It depends whether you prioritie absoluet image quality or convenience.
Cheers,
Bernard