So outside the stacking this is all in camera? No color enhancement? Amazingly well done. I have stacked photos of small jewelry for the same reason but that's a stationary object. I have thought about a custom made high speed camera that adjusts the focus with each frame. So you could make this kind of stacked image with a moving target. Then some software that would analyze each frame and blend them. WAY beyond my abilities/funds but it's fun to think about these things.