I'm not sure what the photographer is doing here....
"I need to check the color balance to make sure we get the correct colors on the bikini bottom. I may have to take quite a few shots with various settings. Don't worry, just hold still. Then we'll have to make sure the colors on your top align as well."
All the above plus, "i've just put on my macro EF180 for some tasteful focus stacked closeup shots - try to be as still as you can"