After doing a lot of reading on macro flash and diffusion materials, I think I’ve finally hit on a good configuration.
- I’ve got a straight flash arm attached to the tripod socket on the bottom of the camera.
- On the opposite end of the arm, I’ve got a ballhead.
- On the ballhead, I’ve got a flash cable on which is mounted my Sigma flash.
- On the flash is a disposable plastic food container lined with aluminum foil. On the bottom is cut an aperture into which the flash head is inserted.
The diffusion material was a real bear. Lots of things diminished the flash output without meaningfully diffusing the light. Today I went to OfficeMax and bought a box of foam packing sheets of the sort placed between plates when moving household goods. I used two sheets held onto the container with velcro strips fastened over the foam and around the opening. After trial and error, the flash was eventually set to 1/64.
Now to rustle up some house spiders…