I haven't posted on usefilm in quite a while. That does not mean that I'm not photographing. This is a sample of some of my recent macro work, a focus stack of 3 frames, (hand-held stack.) Notice that the fly has deposited a drop of digestive juice on the blackberry segment - (making blackberry juice?)
Wolf, I use Zerene Stacker. With insects, I usually stack from handheld focus slices. I typically manage a burst of 3 to 7 frames before there is subject movement. It doesn't always work, but gets better with practice.