Pls show examples where increasing brightness in post better than increasing ISO.

Started 6 months ago | Discussions thread
gollywop
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Re: Excellent example !
In reply to Detail Man, 6 months ago

Detail Man wrote:

gollywop wrote:

Horshack wrote:

gollywop wrote:

What raw converter are you using? and is the profile twisted?

ACR, with my own profile. It's not a profile hue twist issue but mostly a shadow tinting issue. I can sometimes get acceptable results with ACR's shadow tinting slider but only if the color fidelity isn't very important for the image.

Well, your own profile is indeed not likely to be twisted, so that rules out that hypothesis.

I recall your investigation and finding that the Adobe ACR/LR "Exposure" control precedes what appears to be a (as I understand it, a silent, and a non-defeatable) non-linear transfer-function:

http://www.dpreview.com/forums/post/50786838

See also: http://translate.google.com/translate?sl=auto&tl=en&js=n&prev=_t&hl=en&ie=UTF-8&u=http%3A%2F%2Fphotocrafting.wordpress.com%2F2013%2F01%2F21%2Ffollow-up-on-adobe-camera-raw%2F&act=url

One cannot scale the input to a non-linear transfer-function without changing the resultant output.

This is definitely true.  That test was done on a gray scale, so it doesn't tell us how that non-linearity may operate differentially on the different color channels.

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gollywop

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