Get this...
I Saw this in the Star Wars Visual Dictionary.... Is this for real like it was a 1997 Ditched special edition idea?
We Have the Probe Droid looking from a far using different vision modes to detect the shield generator. I can imagine the Probe droid Head spinning / turning and then being shown various image scans inter-cut with the probe droid prop...It seems like it is legit or at least part of Lucus R&D for the special edition? Or is it just made up?.
There is a music cue listed as "2M4 The Probe Scanner" which comes after Luke's Rescue .....