Originally Posted by james holdsworth
I've often wondered about conflicting CA reports. Yes, I'm aware of how individual this is, but is there an aspect of binocular construction [or mis-construction / poor QA] that could cause higher than typical [for that model] CA?
Internal alignment etc?
Yes, internal misalignment leading to coma will cause lateral color to be asymmetrical with the null point falling somewhere off-axis, which can cause significant color to appear on axis. That's not the case with this particular 10x32 which in a high magnification star test shows no significant coma in either side.