Hello,
Taking a photo with the lens orifice more perpendicular to the surface of the coin should clarify my choice now between a 64 and 65.
One can vary the position of the lightning source to minimize annoying glare radiating from both the slab and luster of the the coin etc. Glare virtually always distracts from obtaining an accurate grade...
I realize that this thread is about the grade of a coin but optimizing photographic methods will produce more precise grading estimates from CCF members.
Finally, one may wish to review the following URL which is one of the better summaries geared toward the photography of more difficult MS and proof coins:
http://www.sigma-2.com/camerajim/cjgcoins.htmIMO,
mdpmedia