Looking at the histogram changes in LR when adjusting exposure or
brightness seems to show that
Exposure: simply moves ALL data to the right hand end and eventually off
the edge and so brighter tones burn out, followed by the rest...
Brightness: moves all data towards the right BUT not past it, so that
the brighter tones all squash up on the right hand edge of the histogram
but don't actually burn out.
According to Lightroom Help:
/Exposure/
/ Sets the overall image brightness, with a greater effect in the
high values. Adjust the slider until the photo looks good and the
whites are at the right level. Use Recovery to bring highlight
values down. /
/Exposure values are in increments equivalent to f‑stops. An
adjustment of +1.00 is similar to increasing the aperture 1 stop.
Similarly, an adjustment of –1.00 is similar to reducing the
aperture 1 stop./
/Brightness/
/ Adjusts image brightness, mainly affecting midtones. Set the
overall tonal scale by setting Exposure, Recovery, and Blacks. Then
set the overall image brightness. Large brightness adjustments can
affect shadow or highlight clipping, so you may want to readjust the
Exposure, Recovery or Blacks slider after adjusting brightness. /
So my workflow here is:
Adjust exposure until required highlight tones are fractionally short of
clipping oor clipped
Adjust shadows (blacks) similarly
Adjust brightness to give the correct tone in lighter regions
Adjust shadows to improve shadows appearance (more detail or less as I
think appropriate)
Adjust contrast to "correct" level.
Howard
Lea Murphy wrote:
What is the difference between these two?
I usually adjust exposure (often opening) but on a particularly poorly
exposed set of images I'm finding that adjusting brightness is working
better and easier.
I'm using Lightroom for these adjustments.
Curious to know if one is 'more right' than the other.
Thanks.
Lea
babies. they're what i do.
www.leamurphy.com
