one week ago i tried to capture M45 with my little E-PL7
How could i handle with the halos around the big stars? They look so stairs like, don´t no really how to describe it another way. On smaller stars on the underside it´s blue and at the upper side the halo is orange/red.
Could it be i made some mistake in precessing in startools, or this is because of bad data?
Very much thanks in advance.