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Keep Shooting! Photography Assignments (04 Feb 2013)
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Expose to the right: Good or bad advice?
I have a few friends that say that ETTR is the way to go and you probably know the reasons why.
I accidentally did an experiment that told me that this isn't a great idea because it introduced color shifts in my photo.
My wife is an EMT and I photographed her at her ambulance which is white with orange accents. I accidentially forgot to change the ISO when I went outside and over exposed the first shot by several stops.
I adjusted the camera and then took another properly exposed shot.
Normally, I'd have junked the first shot but I decided to "bring down the exposure" in Lightroom to see if I could make them match...to see what the effect of over exposing was.
Well, to my surprise, the orange and reds were far off from the true colors...and no amount of "fixing" in LR would make them accurate. I might not have known this if I hadn't had the properly exposed image right next to it.
What are your thoughts on this technique?
I usually like to underexpose by 1 or 2 lines from the mid point Guess it depends on the shot.
I find it is easier to recover blown highlights than very dark shadows. With opening up clogged shadows, you get a lot more noise as opposed to bringing down the highlights. That's my logic behind it anyway.
Again, thank you Greg for clearing this up for me/us.
This is the correct exposure according to the in camera meter shutter speed-1/50 nice even nothing overexposed
raw file size:17.1MB
TTR correct bycamera by reburg_99 , on Flickr
same photo with the exposure shot to the right a little. The shutter speed is 1/49 nothing is over exposed and little more light and data to work with.
Raw file size:17.3MB
TTR corect by histograh by reburg_99 , on Flickr
underexposed by 1 stop, I went a little extreme to help clarify the point!
shutter speed 1/200
Raw file size:16.5
TTR 1 Stop under by reburg_99 , on Flickr
Now here's the kicker when we try to correct the exposure on under exposed shot it looks horrible(see the grain garbage in the top right?) and it's still dark. Compare the correctly exposed photo to the one that's been corrected in Lightroom. I boosted the exposure to +2 an still have no where near the amount of light in photo as the correctly exposed one. Look at how dark the caterpillar is! In the 1st 2 shots I can easily darken the image but we can't get light that wasn't captured to begin with.
TTR 1 stop under corrected by reburg_99 , on Flickr
The concept is not to shoot so far to the right that the photo is blown out, but that you have enough data to work with to produce a good image in the end. The under exposed shot has almost 1MB less data to work with, in Greg's words a smaller bucket to drain. I hope this explains what we mean by shoot to the right!
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