
Originally Posted by
GrumpyDiver
These were definitely bounced off of walls. I had two reflectors along in my camera bag, but would have been useless in the shooting situation. These figures were all located in caves and the entrances had overhangs, so traditional light modifiers, that some 80% of the light up and the other 20% forward would have ensured little light from the flash would have gotten to where it was needed.
Direct flash would have been too "hot" on the subject and would have seriously dropped off further into the structure, so bouncing the light off the tunnel walls was my only real option. This had three main problem; first of all the tunnel rock was fairly dark, so it was not a great reflector. It was uneven, so I had no idea how the light would fall, and thirdly, the rock was not neutral coloured, so the light from the flash picked up a warm colour cast.
The first two problems were solved by changing where the light struck the tunnel roof and walls, trying to find the best light. Once I found a good place that gave me the quantity of light that I was after, I used flash compensation to vary the quantity of light (I was shooting iTTL mode). Each successful shot took somewhere between three and six test shots and not all of my tunnel shots were successful.
The colour cast was solved in PP. The problem here was dealing with the skin tones versus the warm tones (the mines illuminated by candle light). I corrected the walls the way I wanted them to look and then with a layer mask and the cooling filters in Photoshop, brought the skin tones to look more natural.