I would suggest backing up and asking yourself why (or whether) you really want to do a batch conversion from PV2010 to PV2012. I personally wouldn't recommend it, even though I feel PV2012 is better in the vast majority of cases.
I think that someone else was me. :crazy:
I was assuming I should use a "no adjustments" smart collection to batch convert PV2010 to PV2012 -- but if doing so counts as an adjustment when the next PV comes out, then I won't be able to perform a similar batch conversion.
When the next PV comes out, just add them to a collection before you upgrade if you're concerned.
I'm not sure I understand the problem or if there is one. I just converted a catalog of ~15000 images Some have beed extensively edited in LR3 And I'm sure there are a few edited with LR2 So I have these Process 2003 and Process 2010. On conversion the Process is still 2010 and the tone curve and adjustment sliders are still where I expect them to be. If I convert any to Process 2012 I get a linear tone curve and the Tone sliders change to reflect the new fields. This should be expected, after all the 2012 Process has a completely different approach. If I leave the image with the original history and the process is still 2010. My image looks like it did in LR3. Nothing changed. With LR4 I can keep the image as they have been finaled or I can reprocess (and improve upon) what was already a pretty good image. Now am I missing something in the description of the problem or is there no problem?
SIf I understand what you are saying, and what I got from the DPReview review, they will be just fine as long as I don't click on the ! and update to process 2012. In fact, I could continue to work on them using process 2010. Is that correct?
If that's the case, then I'm fine -- I just have to remember to create a new virtual image if I want to try out 2012 on a 2010 image. If I am correct in my assumption that I can work on two different virtual images from the same master, one in 2010 and one in 2012. Is this true?
Yes, you've got it right. Alternately, if you can wait, it is likely that LR4.1 will fix the point-curve-in-upgraded-catalogs problem completely whenever it arrives. So there's little need to go out of your way to do anything special here -- the Virtual Copy approach works for now if you need to work on old files that had a point curve in PV2010.
You can continue to work with PV2010 - just don't click the !. If you want to go back, click in the history panel to get to an earlier step. If you're affected by the tone curve bug, the 4.1RC released yesterday should fixed the history.
I would recommend against any batch conversion of PV2010 images. Since PV2012 is so different in its approach you basically are needing to manually reprocess each image since the Tone adjustment parameters are very different. If you leave PV2010 images in PV2010, your images still look as good as they did in LR3.x While PV2012 can improve most PV2010 images, it is not necessary if you were a satisfied customer using LR3.x.I was assuming I should use a "no adjustments" smart collection to batch convert PV2010 to PV2012 -- but if doing so counts as an adjustment when the next PV comes out, then I won't be able to perform a similar batch conversion.