P: LR4 doesn't display point curve adjustments made in LR3

is there any update about the issue?

Hi Patrick,

"am i correct in thinking that there's effectively no way to automatically keep the same visual appearance of older 2010 processed DNGs when converting to 2012?"

I would say so, yes. If you like the way your photo looks already at PV2010, I'd leave it there. When you switch a photo from PV2010 to PV2012 you should consider that you are essentially starting from scratch with that photo. In my own personal Lightroom catalog, I'm not switching any PV2010 photos that I've already done work on, unless I'm doing something particularly special with a photo and think that it could really benefit from some of the new PV2012 features.

"can we have a guarantee that older processing algorithms/models will remain supported in all future versions of lightroom?"

I'm not the right person to make an absolute guarantee, but the current plan is to continue supporting old process versions in future versions of Lightroom.

Lastly, to echo Michael's comment above, let's keep this thread on topic (point curves not correctly migrated from LR3 to LR4). If there are other issues such as these that you'd like to discuss, please start a new thread.

Thanks,
Ben

I think you are correct - there's no way to keep the same visual appearance when converting to the 2012 process. And it doesn't matter whether you used curves or the Basic sliders originally in the 2010 process - either way, converting to the new process will change the appearance, often significantly.

I wondered the same thing about keeping images in the 2010 process - how long this would be supported. But since the 2003 process is still supported, I figure that the 2010 process would still be supported indefinitely. I hope so.

Just to clarify, one more time -

A change in the appearance of the image or the point curve when converting images to the 2012 process is not the bug referred to in this thread. The bug deletes point curve adjustments and resets the point curve to its default when upgrading a Lightroom 3 catalog to Lightroom 4 while the images are still in the 2010 process.

Michael Frye

am i correct in thinking that there's effectively no way to automatically keep the same visual appearance of older 2010 processed DNGs when converting to 2012? ran a minimal test, and it appears that the change goes beyond moving from medium contrast to linear for the curves. manually switching back to medium contrast on a converted shot still ends up with fundamental differences (contrast is far harsher) and possibly wrong values in the basic settings (even accounting for the fact that the values there have been rebased and changed).

see http://twitpic.com/978u8r and http://twitpic.com/978uav

this begs the question: if the suggested way to go is to just keep already processed old shots in 2010 (and having to force myself to ignore the "!" that helpfully reminds me that it's in the old process), can we have a guarantee that older processing algorithms/models will remain supported in all future versions of lightroom? and that we're not going to have a nice surprise in the next version bump, a la "this version drops support for anything other than 2012 process, sorry" (thinking about similar issues with Adobe Audition when they dropped support for non-XML format in the latest version, which meant having to manually go into each project with the old version and re-saving it in the XML format).

Same problem here: 4.1 only finds a few photos with point curves and the the fix is all over the place. The black levels and contrast show extreme variations.
I also have an issue with preferences not working. Auto levels when converting to B&W cannot be turned off.
Overall the update seems much more responsive; good job on that aspect.

Michael

Hi Michael

I am finding that the new sliders in LR4 are extremely effective. I am wondering if routine Tone Curve adjustments are helpful any more. How do you feel about using the Basic Sliders for adjustments, and not using the Tone Curve? What would I be giving up by abandoning the Tone Curve?

As others have experienced, not all my photos using curve tone are taken into account by the RC 4.1 (around 1/3 on a test catalog for me).
Those with corrected curves are good. The only visual difference comes from the better rendering of edges with clarity (a wonderful improvement).
However 2/3 of my photos are rendered significantly different from expected when converted to the new process (and correction involves serious redevelopping).
the 2010 rendering in the RC4.1 is correct so keeping the old stuff untouched is an option. Still I'm waiting for the moment before switching.

Just a quick note to say thanks to the team for posting the script to recover my LR3 curves but importantly to the other users that posted a) how to find it (hiding nested comments is a NOT helpful feature in forum design - as simple web dev hack should fix this ASAP) and b) actually sharing clear instructions on how to use it.

While I had felt like an early adopter fool -- I've enough experience to know to wait a couple of months before taking on a serious update -- I'm now very happily using LR4: making books directly from DNG files is such a massive timesaver for me.

Happy ending...

[BTW- just found another bug in this forum - cancelled signing (to backup my reply) and the reply button no longer functions]

Hi Ben,

Yes, all the images are imported after ACR (the capture date of the youngest one is 11 Feb 2007, a week before Lightroom 1 was released :). I am on Windows 7 x64.

But today, I have reconverted my lr3 catalog with 4.1RC and could not find a single image with a lost tone curve, be it a Custom, Linear or any other.

If you still need the sample file, here it is https://www.yousendit.com/download/M3...

Yes, it does.

The old default for raws was medium contrast, while for baked images it was linear. Now it's linear for both.