Thanks so much @peterlappo !
And yes! I did a ton of testing on “film specific profiles” a while back (ala Vuescan, Silverfast, ColorPerfect), and had a few conclusions from that testing that heavily influenced the design of Negative Lab Pro:
1. “Evaluative” profiles (like AutoNeutral and AutoWarm) typically outperformed “fixed” film profiles.
2. Whether evaluative or fixed, it all needs to be integrated into a single tool to avoid a “stacking” effect. For instance, some tools enable you to use both an autocolor algorithm and a fixed film profile at the same time, which stacks the effects and leads to bad color.
3. Whether evaluative or fixed, it should be easy to see and adjust exactly what it is doing. This is one thing that drove me nuts about Photoshop plugins I tried in the past - pretty much every photoshop plugin uses one or more “autocolor” adjustments in an early part of the conversion, but these adjustments end up “fully baked” in the output - there is no transparency to color adjustment is being applied, and no ability to change it in the early, crucial state in the editing pipeline.
I’m trying to find a better way to do this… the Tiff Scan Prep utility is not ideal and there are just too many caveats to it. I’m working on a method that could avoid this, and that could make for a better workflow for those wanting the IR dust removal embedded into their Silverfast scans.