LR4 - black slider bug?

[PeterAit]

All of a sudden the black slider in the develop module is acting backwards - slide to the right (higher values) and the image gets lighter, slide to the left and it gets darker. Please tell me I am not going nuts!

[john beardsworth]

Not slipped back to PV 2010, have you?

[PeterAit]

Huh?

[Wayne Fox]

That's backwards? Moving the slider to the right has always made the image "lighter" as it moves the blacks up in the histogram.  I've never seen the image get lighter by moving the black slider to the left.

[john beardsworth]

Huh?

If you've selected an older preset, which set PV2010 (Camera Calibration panel) Blacks would behave differently and dragging to the right would darken the picture. Dragging to the left would lighten it.

[digitaldog]

That's backwards? Moving the slider to the right has always made the image "lighter" as it moves the blacks up in the histogram.  I've never seen the image get lighter by moving the black slider to the left.

As John has pointed out, it depends on the Process Version. PV2012 ‘reverses’ the behavior from PV2010 and 2003. It is more consistent with what the other sliders do. So depending on what PV you have, sliding to the right will make the image darkens (PV 2003/2010) or lightens (PV2012).

[PeterAit]

Sounds like you have the same bug I do!

[Schewe]

Sounds like you have the same bug I do!

It's not a "bug"...it's a "feature". Process Version 2012 has a different set of controls than PV 2010 had. The PV 2012 controls all start in the zero position so adjusting the slider to the right will lighten the Blacks, to the left will darken.

[Wayne Fox]

lol, been so long since I've used the black slider in 2010, and honestly I don't think of that slider making the image darker or lighter, I'm usually just watching the black clipping with the option key down most of the time when I use it.

[PeterAit]

It's not a "bug"...it's a "feature". Process Version 2012 has a different set of controls than PV 2010 had. The PV 2012 controls all start in the zero position so adjusting the slider to the right will lighten the Blacks, to the left will darken.

OK, now I get it. Easy enough to get used to, I suppose!