good morning. =)
and sorry for my english.
i have a question about lens.. i want take shots at ~3x magnification (4x is good too), but small DOF is really problem for my ideas.. Is TS-Lens solution of this problem?
what way is better:
Canon mp-e 65mm, or Canon TS-e 90mm? i will use lens with 350D and 30D
mp-e is good, but small DOF..
i can use 2x canon or 3x kenko extender and set (12 24 35mm) of extension tubes with TS.. its really dark, but main problem for me is a increase of DOF in this combination. is DOF of tilt effect and extender+tubes really better, than mp-e 65? what magnification available in TS combination?
With high magnification work, DOF is a fundamental problem.
A tilting lens (as the TS-E 90) does not solve the problem of DOF in itself, since what you're doing is tilting the plane of focus. The focus is just as narrow in relation to that plane, but if your subject matter is simple enough, it will work very well to increase the "effective" DOF.
If not, you're stuck with stopping down and possibly using flash(es).
An example of such "simple enough" subject matter, consider a landscape image with a flower pot in the foreground, in the bottom part of the frame, and a mountain top in the background, in the top part of the frame.
For close-up photography, a tilting lens with extension tubes would probably work very well with e.g. a flower on a stalk (e.g. a daffodil), just tilt the plane of focus so that it's close to the same plane as the flower petals, and you'll have good DOF control.
But to sum it up: which is better depends on your subject matter.Here's a review of the MP-E 65mm