I would like to ask a small help so that I can understand what happened on the following photo.
I was shooting in Funchal airport in Madeira (FNC) and as a 757 from Finnair was landing I kept on shooting until the touch down. Only later I saw that strange distortion which only happened with that aircraft.
I remember that a while ago there was a topic with a similar situation, but I wasn't able to find a logic explanation to that effect.
and fyi I was using a 30D plus a 100-400mm L IS
camera settings: M mode, ISO 160, and the photo was done at 340mm, f 7,1 with 1/250 shutter speed.
Is that...wake turbulence (or something similar)
thank you very much for any help