Helicon Focus is a brilliant software program that allows you to get complete depth of field at any lens aperture. It works like this: You take several images from a tripod, focusing throughout the composition. I typically make 10 to 12 shots at the same lens aperture. You are supposed to begin by focusing on the farthest point in the shot and then, in very small increments, focus closer and closer to the camera position. The software then assembles all the frames together and the entire image is sharp. This works beautifully in macro photography as well as when you use a telephoto lens.
For example, see the two images I've attached. The picture with the out of focus foreground was taken at f/8 (the sharpest lens aperture) with a 160mm focal length. The comparison shot was also taken at f/8 -- but Helicon Focus enabled me to have everything sharp from the immediate foreground to the background.
Here is a link to the website of Helicon Focus if you'd like to download their free trial:
http://www.heliconsoft.com/heliconfocus.html.
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