B&W panel without control slides

Forum|Forum|4 years ago
January 19, 2022
2 replies
349 views

Hallo in Lightroom classic developing window, the B&W panel has missed the regulation slides. I try to reinstall all but the problem is still there. The panel exist but without control slides. Thanks for any help

Windows

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johnrellis

Legend

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You may have set Profile to be Camera Monochrome. Try setting it to Adobe Monochrome:

When the profile is set to Camera Monochrome, the B & W sliders won't appear. Others have complained about that:

https://feedback-readonly.photoshop.com/conversations/lightroom-classic/lightroom-classic-setting-profile-to-camera-monotone-should-not-disable-bw-sliders/5f6736fe6880ca13258562b0

Adobe Camera Raw behaves the same way, so I'm guessing this is by-design.

R

richardplondon

Community Expert

If the profile chosen outputs pure monochrome picture information, then the downstream processing has no access to any hue, and these sliders become redundant (having nothing to work from).

If OTOH a profile is chosen which leaves the colour in. then the B&W conversion can be set to vary its tone response according to those different hues.

I prefer to go one step more, leave the image in colour mode, but rather than using B&W mode I leave the image in colour. Then I set all the Saturation sliders in HSL panel to zero, producing a monochrome appearance. Now the HSL Luminance sliders work to the same effect as the B&W sliders otherwise would do, but every other colour-specific adjustment remains active.

LrC is outputting an RGB rather than a monochrome image anyway, and even if fully monochrome processed e.g. Tone Curve or grading can still reintroduce some hue information, hence the selection of B&W / Colour working 'treatment', is in effect moot.

R

richardplondon

Community Expert

So that begs the question why Adobe doesn't define the camera-matching profiles Camera Monochrome to behave the same as Adobe Monochrome?

I guess, one answer to why this may be different lies in the dread phrase "camera matching"! If you imported a camera generated JPG that had been taken in monochrome mode, this would retain zero scene hue information that could be made use of in subsequent processing. This Raw profile is apparently aiming to mimic the exact same outcome... (grin)

AxelMatt

Community Expert

As far as I see you have disabled the B&W panel. Try to activate it with slide switch.

My System: Intel i7-8700K - 64GB RAM - NVidia Geforce RTX 3060 - Windows 11 Pro 25H2 -- LR-Classic 15 - Photoshop 27 - Nik Collection 8 - PureRAW 6 - Topaz Photo AI

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