I was imprecise. I was trying to ask if the process was automated with the raw conversion happening within the stacking application (either overtly or behind the scenes). Sorry for the confusion.It is logically impossible to focus stack raw files, you need the images. Programs that support raw files simply put them through a basic raw converter first. So you are probably better off using the JPGs from the camera, or ideally doing the raw conversions yourself where you have full control over the processing.