
I often get questions if a preset for LR3 works for LR4. Sure it does, but you need to tweak it a little bit to get the full power of LR4.
When you apply an “old” preset to an image in LR4 you will get a button an exclamation mark in the lower right corner of the image. It’s a sign that there’s a newer “image processing algorithm” available. This happens every time you’ve installed an update of LR and their image processing have been revamped as well. The little button let you update...