This x 2.5 closeup has undergone deconvolution and Multiscale Median Transform processes in Pixinsight
Philip Harrington’s book “Cosmic Challenge” contains about 110 challenges for an astronomer.
No. 76 is to image as many sub-craters inside Clavius as possible. – This is my second attempt and its better, but could be much improved.
Smallest crater seen here is about 4 miles across
Skyris 274m CCD camera with red2c filter
TeleVue PowerMate x2.5 Barlow
Ioptron ZEQ25GT mount