When looking at a local newsletter I noticed they had pictures of people receiving awards indoors and the people were all in the dark due to the backlighting from lamps and other lights. There was a group photo and the people at the ends were especially dark.
It got me wondering if I were to try and take that picture what should I do? Change the metering mode and focus on the people? Point the camera down at the people's shoes to focus first and then move it up to take the picture? It seems like a flash would work for a few people closer to the camera, but what about a group shot?
I think it depends on how important the background is.
If you want to include the background in the composition, then somehow you have to be able to balance the available light with the flash light.
I shoot my daughters at indoor cheer. Flash is sometimes allowed, but with the recycle time of the built-in flash, it is not pratical.
But . . . I do take impromptu group shots off the stage of the team sometimes. And for this, I use the built-in flash on my camera.
For that . . . I crank up the ISO to ISO3200 and dial down the flash 1/3 of a stop and the pictures turn out fantastic.
Dialing down the flash takes the edge off the flash and reduces the chance of hot spots. And dialing up the ISO to 3200 gives the camera a chance to be able to balance the light between the subjects (lit by the flash) and the background (so the people aren't just surrounded by blackness.)
For this, I just put the camera into aperture priority and full matrix metering and my Nikon can sort out everything.
I shoot this around f/4 to try to get the most people in focus.
For large groups, you'd want to focus about 1/3 way into the group of people. That way your depth of field can encompass a bit in front and behind your plane of focus.
If you have an external flash, you can turn it 45 degrees so some of the light goes straight forward, but a lot can be bounced off a low white ceiling if available. This can help to light up the people in back or background.
If it wasn't an impromptu shot, I would manually meter / set exposure settings to get the background the brightness I wanted and then add iTTL (auto flash) to fill in the subject.
Take care & Happy Shooting!
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