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

Ach, well. You were able to save it, and it is just a test-fix, not the real thing. Wouldn't be too picky there.

Can't you take screenshots of the image and the curve in LR3 and 4? This is exactly what I was trying to find and couldn't, because I'm not that heavy an user of curves in LR.

Having been asked to provide also feedback to the documentation and implementation of this fix:

I was very surprised that the link for downloading the lua displayed a web page with illegible signs in my Firefox 10.0.02 browser.
I did not see any button for download, as I would have expected, so I used the context menu of Firefox, which produced a .lua-file on my comp.
I would have preferred to see only an icon and a download button behind the link. No need to view *pure lua* ;-)

The instructions provided in the PDF I found easy and straight forward.
(Win7 user)

I guess one reason I'm upset is that I think Adobe could handle their customers' expectations a lot better. I've only accidentally found about about having my custom tone curves switched to something unusable. The least I would expect is a warning when switching the process with a custom tone curve in place.

I have run the script as well.

As a fan of Michael Frye's editing tip in http://craftandvision.com/books/light... I had quite a number of images to pick for this script: 9388 with recovered point curve and another 1482 with recovered point curve history, as the script result nicely informed me. 10870 in total, ran for ca. 3 minutes.

I did not convert any of those to PV12, so left them at PV10 and went to my best tell-tale image, where I had converted to b/w and applied a double sinus-curve tweak for a solarization effect.
The tone curve looks the same shape as I remember it from LR3 and has the same amount of set points. (Windows, so not able to have both LR versions open at the same time).
But the image looks and prints differently, less pronounced than in LR3, somehow softened.
Despite not having changed PV.

That is a surprise.
In LR4beta I had not noticed any difference as long as I was staying with PV10.

Finally switching to PV12 the softening effect was reversed, now it looks harsher. Another 8 points had been added to the double-sinus-curve.

Ich weiß, was Bananensoftware ist 🙂 And I would appreciate a warning as well. You can start from scratch by switching back to linear and then clicking on point-curve again. So knowing what is happening, it is easy.

This is a real problem, IMO. As I see it, given the nature of software upgrades, eventually all images will have to be ported over to the 2012 process. For those of us that use custom curves heavily, eventually we're going to have to face the fact that our curves are going to have this monstrous collection of points applied to them. I can see going back and re-working an image or two, that wouldn't be a problem. But I imagine that most photographers will have more than an image or two to rework, since point curves have been a part of LR for several years.

I've just tested the "script solution" on a test catalog: it worked perfectly in restoring the 2010 develops. After the script run, tone curves went right on NEF, DNG and Virtual Copies. No "read from metadata in file" was performed.
I'm a Mac user with Lion 10.7.3

Mauro

Even if it's unavoidable, I don't think this is being handled nearly as well as it could be.

The replaced "16-points-curve" is unusable (try making a smooth change to the midtones), so the least Lightroom could do is tell me about doing this to my tone curve and give me the option to delete it and start from scratch.

That would be right way to set a user's expectation and not make them find out by accident while helping them track down a nasty bug.

In Germany we call that "Bananensoftware" (banana software) - ripens at the customer.

Hi Tom, I tried the script on a test catalog containing nef, dng, and virtual images from different cameras: i worked perfectly.
I'm a Mac user with Lion 10.7.3.
Regards

Mauro Morando