LogC high-pass filter that subtracts a blur from the image, then scales and offsets the result for detail work in Nuke.
High Pass converts the input to AlexaV3LogC, blurs RGB, and merges with a from operation so the sharp image minus the blur leaves high-frequency detail. A multiply controls how strong that detail is, then a fixed add of 0.18 recenters the result in log.
Use it when you need a controllable high-pass plate for sharpening, texture emphasis, or frequency separation without building the blur-subtract chain by hand.
Exposed controls are blur size and multiply value. The colorspace step and mid-grey offset stay fixed inside the group so the output stays consistent for log comps.