I found this snapping turtle in the middle of the road in my subdivision, so I moved it (carefully) to the side of the road and returned with my camera. It was important to me to make the foreground as sharp as the face since I usually don’t like out of focus foregrounds. I lay on the ground just inches from the reptile, attached a Canon ring flash, and set my 50mm macro lens to f/32 for as much depth of field as possible. The shutter speed was 1/160 (it has to be 1/250 or less to sync with the flash) and the ISO was 250. I used the flash exposure compensation feature to adjust the exposure. In this particular situation, I used a minus 2/3 f/stop setting.
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