Point Resolution

Point Resolution (or Point-to-Point, or Directly Interpretable Resolution) of a microscope corresponds to the to the point when the CTF first crosses the k-axis at the extended scherzer defocus and can be expressed as:


  • Phase contrast images are directly interpretable only up to the point resolution (Scherzer resolution limit).

  • If the information limit is beyond the point resolution limit, one needs to use image simulation software to interpret any detail beyond point resolution limit.