Why 'more or less stopped using ISO'?

Started Feb 19, 2014 | Questions thread
Shop cameras & lenses ▾
bobn2
bobn2 Forum Pro • Posts: 43,280
Re: Maybe this will help.

crames wrote:

bobn2 wrote:

crames wrote:

bobn2 wrote:

What does 'white' mean?

White is the "reference white" used in the Lightness calculation.

How bright is it?

-- hide signature --

Bob

It can be any brightness. Depends on the luminance, viewing conditions, etc.

When you're calculating Lightness, such as CIELAB L*, you're comparing the luminance of a color to the luminance of whatever you have chosen to be the reference white.

Good, you're getting there, what is the luminance of the reference white?

-- hide signature --

Bob

Post (hide subjects) Posted by
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow