P.S. also note that the current (aerial) panatomic-x is likely not the same thing as what we have in type 55. All I have said (and others too, if I remember correctly), is that there appears to be a close resemblance. But the aerial stuff probably differs in terms of spectral sensitivity.... and that may have implications for how it is best developed. I'd expect aerial to be considerably more red sensitive.
had red sensitivity
to cut through haze ..
pan x wasn't quite like that ...
but aero x from mr foto1 is pretty cheap