That may be so Rick, but when I take lightning strikes it is one frame at a time, and if i get one all well and good if not, better luck next time.
I have never ever combine images, you either get it or not, a bit like fishing i guess, you get a bite or not and sometimes you catch a big one, not that I have ever caught a big one, Fish that is
Anyway guys this is not how this thread started, your just getting very technical now, and i too know one can do many things with modern Cameras these days.
I answered a simple question from Mick and answered it the way i saw it.
Leon