Let's say I process a given image in Lightroom 1.1. Then I open the same image in Camera Raw 3.7. Camera Raw indicates considerably more highlight clipping than Lightroom does. Has anyone else noticed this discrepancy? How could I know which program is giving me more accurate information?
White Balance so easy, even our 5 year old can do it.- Melissa Strickland
3.7 and LR are NOT using the same controls. You'd have to use 4.1 and LR, then they are at rendering and processing parity. Update your copy of Camera Raw!
__________________ Andrew Rodney
Author "Color Management for Photographers" http://www.digitaldog.net
White Balance so easy, even our 5 year old can do it.- Melissa Strickland
I have definitily noticed that discrepency, and the way I have decide which is most accurate is to calibrate my monitor with my labs ICC profiles and see which is most accurate. My workflow starts in Lightroom 1.1 then I got to Photoshop CS2 for the final editing. When I let Photoshop determine the final print it is also accurate. Hope this helps
White Balance so easy, even our 5 year old can do it.- Melissa Strickland
As Andrew already pointed out, both use different rendering and what you see is not the original RAW file (you can't look at the original data because they need to be demosaiced and gamma corrected first) but just a default rendering. That is why different programs show different defaults. However, the idea of shooting in RAW is that you make your own decisions about how to render the data, so perhaps I can answer the question with a question:
Why is it important to know which one is 'more accurate'?
Why is it important to know which one is 'more accurate'?
Assume for the moment that the discrepancy was not caused by using Camera Raw 4.0, and that there is a difference between LR and ACR in as important an area as white clipping. Or, say, in the white balance.
I would find it very difficult to work under these conditions, even if I could take into account the differences. If the clipping in ACR were accurate, I would have to build in a correction in LR, and vice-versa. Wouldn't that be similar to havving a monitor with an inaccurate profile?
__________________ --Walter Kimmel
White Balance so easy, even our 5 year old can do it.- Melissa Strickland
Assume for the moment that the discrepancy was not caused by using Camera Raw 4.0, and that there is a difference between LR and ACR in as important an area as white clipping. Or, say, in the white balance.
Thats NOT the case if you use the correct versions where they have parity in the processing engine! CR and LR will produce identical results if you apply the same rendering instructions. Now CR and Aperture or Bibble or C1? Nope, all bets are off, even if they share the same names for a control like Exposure.
You DO need to pay attention to the differences in how LR and CR provide you a rendered file based on preferences. Here there are slight differences. There's no ColorMatch RGB encoding option in LR, there is in CR. There's no point correction curve in LR, there is in CR. IF you start in CR and go to LR however, it should still read the metadata and update the rendering (its a trick some who just HAVE to have point corrections use). The numeric scales and Histograms are not the same but that doesn't affect the final rendering, only how you see the values.
Again, if you use the current versions of both LR and CR, you'll get the same results.
__________________ Andrew Rodney
Author "Color Management for Photographers" http://www.digitaldog.net
White Balance so easy, even our 5 year old can do it.- Melissa Strickland
Assume for the moment that the discrepancy was not caused by using Camera Raw 4.0, and that there is a difference between LR and ACR in as important an area as white clipping. Or, say, in the white balance.
I would find it very difficult to work under these conditions, even if I could take into account the differences. If the clipping in ACR were accurate, I would have to build in a correction in LR, and vice-versa. Wouldn't that be similar to havving a monitor with an inaccurate profile?
Lightroom corrections and CameraRAW 4.0 corrections are not 'carried over' to eachother (you need ACR 4.1 for that), so I fail to see the problem. You are simply looking at two different things. You can't say that the clipping you see in one is or is not 'correct' if you do not see it in the other. Apart from that, you are working towards and end result, which is a TIFF file if you work with ACR. So, whatever you see in ACR when you *open* the image is irrelevant, as long as you correct it before you send the image through to Photoshop.
I usually work in Aperture, but I use Photoshop and CaptureOne occasionally as well. That means I have the same 'problem' except that I don't understand why that would be a problem. If I open a RAW file in CO, it looks different than it does in Aperture. So what? The only thing that interests me is how it looks after I converted it to TIFF... Isn't that the whole point of shooting in RAW?
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