chapjohn wrote:
Use the macro lens. Use external flash at 1/16 intensity with a soft box (they make small soft boxes for flash). f5.6, SS 250, auto ISO, auto WB, wide focus, single shot mode, dail on M.
The above settings will elimnate the adjustments you need to make with your camera. Butterflies move faster than you think and you don't want miss the shot.
On-camera soft box could be fun. I was thinking maybe a ring flash as an option?