Join David Hobby for an in-depth discussion in this video Refining the exposure, part of Lighting with Flash: On Location, from Close Up to Portrait.
Okay, so I've just added two more stops of light and we're at 1 16th power, which …is still very low, but that's giving me the ability to shoot f22. …I'm getting more depth of field around the frog, but my worry will be that any …dirt on the glass might start to come into focus, so that's what I'm balancing. …I want as much depth of field to carry the frog, but I don't want to be seeing …the, the schmutz on the glass in front of me. …another thing, if you remember we went to two-hundred-and-fiftieth of a second when …we first started shooting the flash pictures, that was to kill the ambient light. …So, the ambient exposure, in here, was a 20th of a second at F4, at ISO 800, if …I'm remembering correctly now. Right now, we're working at …two-hundred-and-fiftieth of a second. Which is adding, okay, let's, let's call …it a 30th of a second just for ease, a 60th, 125th, 250th.…
That's killing three stops of ambient light right there, and then we're adding …more light with flash. So we're probably five, six, seven stops …
- Uncluttering the background of close-up shots
- Adding flash and refining exposure
- Setting up lighting for a portrait
- Organizing photo meet-ups that have a purpose