So I run Alignment and now there are new figures.
In 2Ds, a typical registered photo shows pp: -11px, -23px; lamda: -0.092, 0.017, 0.006.
And in 1Ds Reg calibration>Principal point x -0.01, y -0.215; Reg lens distortion Radial 1 -0.092, 2 0.017, 3 0.006.
So now I know what pp and lamda mean, but pp is in different units (ratio 106) compared to Principal point.
All these figures are identical for all of the photos registered in the Component, but have changed relative to Prior calibration>Principal point x 0.00 and y 0.00. What exactly has changed and why identical?
I’m quite sure that I’ve seen similar figures, after Alignment, presented as x = 1, y = 1, z=0.8 but can’t find that now. This would seem to relate to the DXOmark lens-test figures of long-edge (x?) 1.3%, short-edge (y?) 3.12%. But what can the z be?