A little amusement for demonstration.

I set the dolly camera position to 0, 0, 0, and all rotations 0.

I made a spotlight positioned to 0, 0, 0 and all rotations 0. Then I moved the light up (Y) 5 inches.

Spotlight set to inverse square falloff, intensity 200. This is my camera "flash".

I parented the spotlight to the dolly camera. Now the light moves with the camera and behaves like the camera-mounted light on an SLR.

The quality of the light is very much reproducing what you see from such photos.

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Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)