The iridescence of the elytra of this "jewel beetle" can be very intense and vary very dramatically when the light hits the surface at certain angles. Here are a couple of shots of a transition from a red stripe to the more overall green color.
Olympus BHA, 5/0.13 Neo SPlan, 2.5X NFK photoeyepiece, BH2-UMA vertical illuminator, Epi-darkfield, Canon DSLR.
Olympus BHA, 10/0.30 Neo SPlan, 2.5X NFK photoeyepiece, BH2-UMA vertical illuminator, Epi-darkfield, Canon DSLR.
Elytron detail, Chrysochroa rajah thailandica
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- Charles Krebs
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- Charles Krebs
- Posts: 5865
- Joined: Tue Aug 01, 2006 8:02 pm
- Location: Issaquah, WA USA
- Contact:
Marek,
I'm using a fiber optic illuminator. The (used) BH2-UMA I have came with a "collector" element and an attachment that takes a (rather narrow tipped) fiber optic light guide. By chance I had a light guide that "split" to three output ends and they fit nicely. It's worked out OK, but I could certainly use more light with the 5X and some crossed polarization uses. Unfortunately the Olympus high wattage tungsten-halogen lamphouse made for the BH2-UMA doesn't show up that often (at least separately at a price I would consider).By the way, how strong lamp do you use with your vertical illuminator ?