Do you have a good suggestion for a image-stacking-program?
It's on my 'to do' projects list, but I don't have any hands on experience with focus stacking, sorry.
Offtopic
I found out about focus stacking some years ago, while accidentally discovered a technique to make live insects stay in a desired position without moving (for macro photos). I put some grapes in the fridge, together with a wasp I didn't know it's there. When I took the grapes out, found the wasp and noticed it was not dead, but could only barely move. I put it outside, in the sun, and took some macro pics of it while the pure wasp was recovering. To my surprise, the photos were very lame when compared with other online photos of insects, even when the lens was pushed to its maximum DoF (Depth of Field) settings. That's how I found out about focus stacking and how much it can do for DoF.
Later, I also found out that most of the insects stop moving at low temperatures, yet they are not harmed at all, this happens frequently in nature during the cold nights. Just don't freeze them. Also, they can be arranged upon wish in a photo setup without hurting them. Even when put them into the direct sunlight for better shots, there is still time to take enough photos before the insects can fly away.
