"show clipping" feature in library module please

Question

I wish we could have the "reveal clipping" feature in Library, so while we are
reviewing sharpness, we can also toss clipped pix.  Now we have to go to
develop and go thru them all over again AND the 1:1 previews are slow there. 
Agree?

Answer 1

RawDigger isn't a tool I use for that purpose, but I guess you could. I've only used it to get a better idea of what a clipped raw file actually looks like in LR and on my camera's histogram. Raw Digger or Rawnalyze will help you do that. More info here:
http://forums.adobe.com/message/4488745#4488745
Also keep in mind that PV2012 uses auto highlight recovery, so PV2010 and PV2012 histograms and clipping indicators look quite different. PV2012 generally hides some raw clipping, while PV2010 looks much worse than reality. Neither one is 100% accurate!
Double-click image to see full-size:
PV2010 Top, PV2012 Bottom, RawDigger Histogram
Go ahead and try it for yourself. To get the above histogram view in RawDigger make sure you check 'Log Scale' under 'Y' Axis Range. The above raw image looks way over-exposed in both PV2010 and PV2012, but notice that PV2012 only show slight clipping in the white patch. RawDigger shows a little over 50 red and blue pixels clipped, and about 50,000 green pixels. So we have a total of ~ .05/21.1 Mp = 0.24% clipped pixels. Not a heck of a lot!
Here's the above image adjusted to match one shot at -1 2/3 EV (i.e. shows no clipping in PV2010). The only real difference is that the yellow postit looks slightly paler, due to the clipped green pixels (i.e. insufficient green). The optimum exposure (i.e. without clipping) was -2/3 EV. If you chose the -1 2/3 EV image your s/n ratio will be cut in half (-1 EV). At high ISO it makes a big difference in shadow noise, especially with PV2012's excellent shadow recovery. ERGO- ETR (Expose To The Right)
This is  probably way more information than you wanted, but better to be informed than work in the dark (pun). Here's the view in Rawnalyze confirming clipping in the the 100% white patch (what we want) and postit. Rawnalye's clipping indicator uses the "clipped color, " which for green clipping is magenta (i.e. R+B-G):
Message was edited by: trshaner
Added Rawnalyze view.