Interesting.  I had never thought of trying that, but I just tried it in Photoshop 13 ("CS6") under Snow Leopard 10.6.8 and in Photoshop 11.0.2 ("CS4")under Tiger 10.4.11 and I got the latter behavior you described in both versions on two different Macs: the sliders move totally independent of each other regardless of the modifier key used.

What specific version did you use when your were able to move the sliders in unison?  I have other versions installed.

Message was edited by: station_two

I just tried on a PC all the way back to Photoshop 6.0.  The sliders never moved together with any modifier keys.

When you say "make a tint of an RGB color" it's not quite clear what you want to do...  If you open the color picker by clicking on, say, the foreground color, have you tried manipulating the controls there?  Maybe reducing the S (Saturation) value is what you want?

-Noel

noldo9 wrote:

 

…But, why, if it can be made to work that way in Illustrator, can't it be made to work that way in Photoshop?…

As strange as it may seem to you, that is a non sequitur. 

Illustrator and Photoshop are two different applications with different, independent engineering teams and managers.

Here's the thing:  the "creative suites" are nothing but a figment of the imagination of the marketing folks at Adobe.  As has been often stated (mostly by me but also by others ), the individual point-applications  engineering teams are not only not in the same building but even in different cities, different states of the American Union and, in some cases, different countries and different continents. 

They clearly do not work together very often nor very well, and they communicate as little as imaginable among themselves—as evidenced by suggestions made on the forums by Adobe engineers to "let the other teams know" that there are real problems that interfere with the other applications and with our work.