I had a few PMs about the cropping on the Tech image I posted in the neg1 thread.
I am cropping off the rounded corners etc. leaving just a little more in the image than the theatrical cropping, so, yes there is some cropping of the image, but a bit less than in the cinema.
The scans have the full frame including sprockets and soundtrack, so it is archived in its complete state, but I prefer to have the finished product closely match the 1977 theatrical presentation.
For reference, here are the two Team-1 images from their Before & After videos they recently posted, that show pretty much the full frame.
The image from the old tech