Upload & Sell: On
After playing with "blend if" a bit more and thinking about where it does/doesn't improve on the alternatives:
- It seems like it might be faster in some cases, though alternative "tricks" (like "locking down" points on masked curves) can accomplish similar things pretty quickly and effectively, too.
- The notion of controlling the width of the region in which the blend takes place calls for a bit of caution. Essentially, in that luminosity zone, the curve gets compressed - what a friend refers to as visual constipation. In an image in which that range of luminosity holds less important image information, that could be OK, but careful!
- it is certainly worth having in the bag of tricks... but it doesn't replace the need for certain other techniques, notably the careful use of masks of various sorts.
Dan, I appreciate your thoughtful feedback here. After getting to know many Photoshop "gurus" over the years it is obvious that at the advanced level most have their own way of doing things. Having said that, I cannot explain in words here all that I do with "Blend If". It would have to be seen because a lot of it is far beyond description. It has totally revolutionized my workflow over the last few years, and I am one who has both used and taught every technique imaginable. In no way is it in my "bag of tricks." It is my "bread and butter" go to, for most of my blending issues. Even my recent video only hits on how I use them to control dynamic range and how to use them for advanced dodging and burning. There is a whole world of other things I use them for.
The written tutorial will be very basic in comparison to all that can be done. But that should help a lot of folks at least try it. For some it will open up a whole new world of blending made simpler with no comprise in power.