I’ve said it many times on this blog – cameras are stupid, really stupid. And here’s a case in point – if you are trying to photograph a dark subject against a bright sky, the camera will almost certainly get the exposure wrong. The solution to his is to take what is called a substitute exposure reading.
Some time ago I was walking in Edale in Derbyshire and came across a helicopter collecting stone for footpath restoration. The helicopter was dark, the sky was very bright. Time to use a substitute reading to get the exposure correct. Fortunately I had my video camera with me and was able to capture the the process.
Here’s a summary of the steps:
- Put your camera in manual mode, and select a suitable ISO and shutter speed.
- Point the camera at something that is a mid-tone eg grass and fill the frame with it.
- Adjust the aperture until the little pointer at the bottom of your view finder is set to zero
- Take a test shot
- Adjust the aperture up or down if necessary.
Here’s some of the images from the shoot:
You can find the full gallery of images here: http://photos.imb.biz/other/edale-helicopter
I started out by saying that cameras are stupid – really stupid. Well I have to confess that so are photographers who try to photograph helicopters…. watch the video to the very end for the outtakes and you will see what I mean!
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lol – never knew it was called that
What? A helicopter?
:) knew that one, never heard the term substitute exposure before