Definition of acutance in English:

acutance

noun

  • [mass noun] The sharpness of a photographic or printed image.

    • ‘Because of the tanning effect of catechol on emulsion gelatine, it has many of the properties of pyrogallol, including high acutance and low fog.’
    • ‘Highlight separation, sharpness and acutance are increased because they give more pronounced edge effects than other developers.’
    • ‘Not only is the roll printable, it has extremely high acutance - the prints from it appear almost unreally sharp.’

Pronunciation:

acutance

/əˈkjuːt(ə)ns/