Lightroom - order of processing instructions

[keheha]

Lightroom does non destructive processing of your images. It takes your original RAW file and runs a set of processing instructions to get the final result. I've been wondering in what order these instructions are applied.

The best example I can come up with is a scenario where you apply lens vignetting and crop the image. Ligthroom will do just that, in that order - first vignette, then crop - and thats a good thing if you want to correct actual lens vignetting.
On the other hand, if you want to use vignetting as a artistic effect on a crop you have a problem.

Is there a way of changing the order of the processing instructions?
Is there a list that explains to order of all processing instructions?

(note: I'm running the beta4/win)

- Kern

[rfreschner]

Perhaps I'm not understanding your question, but (using your example) why would you want to do the vignette and then the crop and have LR apply them in a different order? Would you not want to visually see the effect of the vignette on the cropped image? For that matter, why would you ever want to apply changes in a different order than you input them? :confused:

[keheha]

Perhaps I'm not understanding your question, but (using your example) why would you want to do the vignette and then the crop and have LR apply them in a different order? Would you not want to visually see the effect of the vignette on the cropped image? For that matter, why would you ever want to apply changes in a different order than you input them? :confused:

Perhaps I'm not explaning it clearly.
The problem in my example is exactly that the vignette is done first and applies to to whole image. And the crop is done afterwards. If I were to crop the image from the top-left to bottom-middle (effectively cutting the right half away), the image will only have vignette on one side. Example attached.

What I would have liked to do was a crop with full vignette - change the order of the two processing instructions...

- Kern

[rfreschner]

Why would you not crop first and then do the vignette?

[keheha]

Why would you not crop first and then do the vignette?

I don't - that is the point... but due to the order of Lightrooms processing instrucions, that is exactly what happens.

- Kern

[rfreschner]

Ok, maybe I'm being dense this morning - are you saying that LR forces you to process vignette first and then crop?

[TheSteveMadden]

Lightroom has the same problem that Bridge does when it comes to vignette application. The Vignette is done on the uncropped image, so off-center crops will only show partial vignettes. To get around this, apply vignette in PS or export the photo and vignette the cropped export in lightroom.

I guess we'll have to wait another week to see if the release version (v1.0) has the same behavior.

Edit: This makes sense from a purist standpoint because vignettes are a Lens effect much like CA removal and if you cropped a film vignetted image you would have the same partial vignettes. I still think the vignette settings should apply to the crop as vignettes are now effects and not artifacts.

[rfreschner]

Ah, I knew I was being dense. Thanks for clarifying the issue Steve!

[doubledragon]

why not try a work-around?

try cropping and exporting an image, then do the creative vignette on the cropped version!

[dougsturgess]

Here's what I'd like to understand. Lightroom allows you to do all these corrections but when I choose to edit in Photoshop, I can't save the picture as a Jpeg when I'm done. Why is that? What does everyone do with their pictures once they've done the editing in Lightroom?

Thanks.

[rpolitsr]

In PhotoShop, you can not save as .jpg if the image is in 16 Bits/Channel mode.
Perform Image>Mode>8Bits/Channel first and the option to save as .jpg will be added to the ‘format’ dropdown of the Save As dialog.