Major components include
- Really Right Stuff TP-243 Ground-Level Tripod with BH-40 ballhead
- StackShot rail
- DIY bellows, reworked from Olympus OM Auto Bellows by cutting the rail into sections and mounting those through spacers to Arca-Swiss type clamps and rail
- Raynox DCR-150 tube lens, auxiliary iris, Mitutoyo 10X M Plan Apo objective
- Yongnuo flashes and RF triggers.
From a lower angle, in stereo, the setup looks like this. Normally I don't bother with stereo for equipment shots, but I thought it added some clarity to this one -- at least for those who are able to see stereo!
I'm sure that somebody's going to wonder about that Kleenex tissue over the flash heads. That's mostly habit, to avoid any possibility of interesting patterns reflecting in mirrorlike surfaces like ommatidia. For explanation, here are straight shots into the head of that Yongnuo flash, with and without the tissue fastened over it. As you'd expect, the tissue doesn't make the light source much bigger, but it does make it quite a bit less structured. That probably doesn't make a whit of difference for this particular application.
By the way, anybody wanting to look at their own flashes in this way should be prepared for a bit of struggle to keep the image from blowing out. Despite lowest flash power and ISO 100, I finally had to resort to shooting through a pinhole in black paper, about 0.4 mm with a 100 mm lens so effectively f/250. The diffraction blur is pretty awful, but it's good enough for illustration.
Edit: correct Raynox lens type