Following are scans of a dark bronze, a smooth and shiny AR denarius and a shiny AV stater don on 3 different UMAX scanners as indicated. These are raw images done at 1200 dpi, using the Auto mode of the scanner software, without sharpening or post-scanning manipulation. The images are downsampled to 72 dpi and 300 pixels wide and saved as JPGs.

 

UMAX Astra 1220U ($150) UMAX Astra 2400 (350) UMAX Powerlook III ($750)
  Antoninus Pius AE30 Philopopolis  
  Elagabalus "Stone of Emesa" denarius  
  Ambiani biface AV stater