Hello All,
This may be old news to the dedicated Macro shooters, but it's something I haven't tried too much and finally got decent results with; Using a small reflector to add fill light to macro subjects. Perhaps my experiences might be helpful to other users.
First, the size and type. I had been using a 42" oval (foldable) white/silver reflector, but it was just too big for many situations, hard to hold or place. Also the silver side cast a 'hard' light, unsuitable for most macro scenes, but the white seemed better. Maybe not perfect for everything, but better.
So, I ordered a 5-color 60cm (24") round, foldable from eBay, about $10 USD, shipped; White, translucent, black, silver and gold. I set it up so the gold and white were on the outside when it's unfolded, and this worked out best.
My photo club signs up for an early-opening meetup at the Denver Botanical Gardens every month. It allows the members to come in for 2 hours (7-9am) before the public opening at 9am. Last time I used bracket-mounted fill flash with a diffuser, worked out OK. The low morning light is beautiful, but casts hard shadows on the back side of the subject.
This time I had the new reflector, so didn't use the flash. By the end of the session I had a system down pretty well, with a little trial and error. Using a tripod, I'd find a likely subject, set the tripod height and angle, then compose the shot. Mostly looking for a back-lit or side-lit angle, a position where I was seeing deep shadow on the camera side. Once I got focus lock (without actually clicking) I would take the cable release in my left hand and move away from the tripod slightly, the reflector in my right hand. Moving the reflector to various angles changed the fill, it's easy to see the result. I'd also try both the white and gold, the difference here was quite subtle but noticeable. Once I got a result I liked, one click, look at the preview as it flashed on the screen, try another angle, distance or color. It's actually much faster to use than explain!
The camera mode was AV, ISO 100, FA 100mm f/3.5, K-7. I did bracket a few shots, but mostly the meter setting was right-on. It seemed at least as easy as fill flash, with less bracketing or missed exposures. YMMV.
Here's a few samples, hope this is useful! The first two photos used the reflector gold side, the last one, white.
Ron