==== Ctftilt ==== **Program determines defocus, astigmatism tilt axis and tilt angle for images of arbitrary size (MRC format). Astigmatic angle is measured from x axis (same conventions as in the MRC 2D image processing programs).** {{ :screen_shot_2018-07-07_at_22.41.12.png |}} {{ :screen_shot_2018-07-07_at_22.41.23.png |}}