I have been shooting lots of 3D stacks. Most I still have to process. But these are some examples. Not that spectacular but I was glad that it worked. I have a dedicated flash for my microscope with a tube but it is very slow and gives uneven illumination. It is made from a very old flash and I have not succeeded yet in improving it.
For these pictures I used a normal flash with a little mirror under the condenser. So I could shoot a quick series.
Images made through a microscope. All subject types.