Slide scans color-balance by PS?

[Eric Myrvaagnes]

The other thing you can do, Eric, is pick a spot you know is white. Usually there are more of those than spots that are middle gray.

My bad vision will still cause problems: How do I know a "white" wall isn't actually light green or light magenta?

Of course I could carry a small print that PS has guaranteed to be white.

[rabanito]

My bad vision will still cause problems: How do I know a "white" wall isn't actually light green or light magenta?

Of course I could carry a small print that PS has guaranteed to be white.

Why not carry 1/4 of a grey card with you (4x5)? That's small enough and guaranteed gray. The back is white

[Eric Myrvaagnes]

Why not carry 1/4 of a grey card with you (4x5)? That's small enough and guaranteed gray. The back is white

I might try that the next time I get out with a camera, unless I have forgotten by then.   

[rabanito]

I might try that the next time I get out with a camera, unless I have forgotten by then.   

A friend of mine told me once.
"There are three things that I always forget:
1. The names of persons I meet
2. My wedding anniversary
3...…….third………third……….hmmm, I don't remember..."

[Eric Myrvaagnes]