It struck me looking at the A340 take-off photo sequence in my previous post how much latent processing power we have in our brains that we just take for granted to the point of not even noticing it without making a concious effort.
Some of the zoom changes were quite radical, like going from full zoom to minimum zoom in less than a second for these two shots:
In addition to all that I was conciously working physically to keep the camera steady (at full zoom my DSLR and lens is close to a foot and a half long, and catches a lot of wind, not to mention my upper body being buffeted by the breeze as well), standing on a reasonable slope without falling over, and pivoting around my waist to keep the aircraft in view, mentally noting that the aircraft was quieter and the takeoff roll shorter than I expected, that the gold colouring would have looked great in full sunlight, and thankful that I had a nice skyscape as a background.
And we use our brains like this pretty much all the time without thinking about it. Impressive (when you think about it).