sim and real lens ?
by ElisabethB moderator
sim top right. But what about the one bottom left ?
Model appears to be plausible as also the zoom image seems to arcs and counter arcing.
Model results for ASW0004pbi: Plausible
by Tom_Collett scientist
Looks like an interesting candidate. I don't like the model yet - I see blue at 1,4,7 and 9 - have you tried putting the yellow green circles there?
I'm a little bit worried that there appears to be an extra blue component near the centre at about 3 o'clock; this might imply that the this is a disturbed spiral, but a good lens model could mitigate my fears!