I am intrigued by the possibilities of focus stacking but during the creation of my first stack, I noticed the image getting bigger as I focussed through it. OK, I don't have a nice Nikkor Micro lens, I was just using my kit 18-105mm at 100mm with +3 diopter close-up lens when I noticed it. I changed it for my 50mm f1.4 but that was the same.
Is this definitely something that goes away with a dedicated (read expensive) macro lens or is it a fact of life? If it doesn't go away, how the heck do you create focus stacks without hideous blur?
If any of you guys are into focus stacking, I would appreciate some pointers.