Tim Evans Posted December 24, 2017 Share Posted December 24, 2017 I've seen where Damien mentions LR's clipping warning as useless, but I can't find a more thorough discussion on it. Does Damien have an article discussing his "problems" with Lightroom? Link to comment Share on other sites More sharing options...
Damien Symonds Posted December 24, 2017 Share Posted December 24, 2017 Well, they literally don't represent the channel clipping. Don't worry about it for now. Get stuck into the Raw Class, where you'll see how they're supposed to work. Link to comment Share on other sites More sharing options...
Tim Evans Posted December 26, 2017 Author Share Posted December 26, 2017 I opened some holiday pics in both LR and ACR, and I now understand. . You're quickly making an ACR & Bridge convert out of me! Link to comment Share on other sites More sharing options...
Damien Symonds Posted December 26, 2017 Share Posted December 26, 2017 Great. Link to comment Share on other sites More sharing options...
novagary Posted May 15, 2020 Share Posted May 15, 2020 On 12/24/2017 at 6:16 PM, Damien Symonds said: Well, they literally don't represent the channel clipping. Damien, what do they represent then? I ask because I often try to talk intelligently with LR users and would like to understand its shortfalls inside and out. Link to comment Share on other sites More sharing options...
Damien Symonds Posted May 15, 2020 Share Posted May 15, 2020 It's difficult to say, exactly. As far as I know they represent Melissa RGB, which is the colloquial name of the colour space that Lightroom uses for its internal calculations. It's a huge space similar to ProPhoto RGB. Therefore, Lightroom accurately shows clipping in whites (where detail is blown out completely white) but not accurately for colours. Link to comment Share on other sites More sharing options...
novagary Posted May 15, 2020 Share Posted May 15, 2020 If you soft proof in LR and set the color space to sRGB, does that then make the histogram usable, in other words does it reflect sRGB colors and clipping, just like in ACR? And regarding the point you made above about accurate clipping in whites, is that because all color spaces share the same white point? Link to comment Share on other sites More sharing options...
Damien Symonds Posted May 15, 2020 Share Posted May 15, 2020 1 minute ago, novagary said: If you soft proof in LR and set the color space to sRGB, does that then make the histogram usable, in other words does it reflect sRGB colors and clipping, just like in ACR? Histogram, yes. Clipping, no. Very sadly. 4 minutes ago, novagary said: And regarding the point you made above about accurate clipping in whites, is that because all color spaces share the same white point? Correct. Link to comment Share on other sites More sharing options...
novagary Posted May 15, 2020 Share Posted May 15, 2020 8 minutes ago, Damien Symonds said: Histogram, yes. Clipping, no. Very sadly. So in some cases, the histogram might be gently kissing the walls, but there is still significant color clipping going on? I am not a LR user, so I am guessing there isn't an equivalent function to the "alt" button in ACR to reveal what pixels might be clipped. (In ACR, I prefer the alt button to the histogram to reveal clipping.) Link to comment Share on other sites More sharing options...
Damien Symonds Posted May 15, 2020 Share Posted May 15, 2020 You can use the Alt key in LR too. It just doesn't work Link to comment Share on other sites More sharing options...
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