There are so many variables when taking pictures and the differences are so striking that sometimes It doesn't look like the same coin.
I really need to find something that will put me in the proper parameters so I can have a life outside of coin photography.
My latest attempt is putting the coin off the card about 1/2 inch one flat and the other at a slight angle. There is definitely better edge sharpness.
These were shot with aperture priority f 20 in natural light using my sony 5n and my E 3.5/30 macro lense coin position about 150 mm from lens.
Norm