Re: Good Framing?
On the BBC's "The Sky At Night" TV programme covering the Ultima Thule flyby, the mission person interviewed said that the aiming was so accurate the first detailed images received were only one pixel out from where they were expected to be. So the image could be what was actually taken.[1]
(And if it was cropped, then the cropping was done by the spacecraft to save bandwidth.)
Either way, still impressive.
[1] Bar contrast, colour enhancement etc