I take a lot of macro shots - insects, lichens, liverworts, etc. Last summer I picked up an Olympus Tough TG-5. Besides being ruggedized (waterproof, dustproof, etc ), it also does in-camera focus stacking. It will take 10 shots in about a second at different focal points and then merge them. The merging software works quite well even for hand held shots. Focus stacking is awesome! It is pocket size and under $500US. I take a lot of shots in microscope more, from under an inch away. It can also do HD video, slo-mo and high speed.