Aha Me A Riddle I Day

Not the Laura Love song, but a real riddle. What happened here?

My face is underexposed totally compared to the rest of the shoot, which was like this:

So there the sides of my face are well exposed. But then the photographer zoomed out, and we got the shot at the top. What gives?

If you do not know, let me give you a hint: we were using TTL.

If you still do not know, allow me to explain:

TTL is like “auto for flash”.

  • Auto flash exposure normally uses evaluative (“Matrix”) metering.
  • I.e. the screen is divided into little squares, dozens or hundreds of them, and each one is metered individually.
  • As soon as any of these little squares are overexposed, even one of them, the camera tries to fix that.
  • It does that by lowering the exposure. But you obviously cannot change just one part of the photo, so the entire exposure is lowered.
  • That’s the reason the picture at the top is underexposed: the flashes are visible, meaning a hot spot or two, and the camera “fixes” that by lowering the entire exposure (by using a lower flash power setting).

The fix: You can go to average metering. Or you can avoid hotspots like reflections or flashes.

That’s one of the little facts you learn if you take my flash course.

Are you aware that virtually all my courses are offered online as well? Live, one-on-one courses, like the one I just did today with a long-time reader from Melbourne, Australia:

If you go to this page and check the pull-down menu, you will see that you can even save money by doing it online. So wherever you are in the world, I would be delighted to do a one-on-one with you.

 

Leave a Reply

Your email address will not be published. Required fields are marked *

*