Skip to main content
. Author manuscript; available in PMC: 2016 Sep 1.
Published in final edited form as: J Struct Biol. 2015 Jul 22;191(3):299–305. doi: 10.1016/j.jsb.2015.07.009

Fig. 1.

Fig. 1

A zero-tilt micrograph from the tomographic series. (a) The entire field, (b) Region 1, a small contaminating ice particle used as a test object. (c) Region 2, a larger ice particle. (d) Region 3, a magnified view of the central area. Arrows in (b) and (d) indicate the halos and fringes caused by the cut-on of the Zernike phase plate. The arrow in (c) shows inverted contrast at the center of the particle.