Skip to main content
. Author manuscript; available in PMC: 2008 Sep 1.
Published in final edited form as: J Struct Biol. 2007 Apr 20;159(3):335–346. doi: 10.1016/j.jsb.2007.03.005

Figure 4.

Figure 4

An example OTR image pair taken from the COPII vitreous ice dataset. In panel A is the first tilt image of a pair, taken at -45°, showing considerable charging towards the bottom half of the image. The charging resembles drift except that the effect is localized to only a portion of the image. In panel B is the second image (at 45°) taken 30 minutes later showing little evidence of the previous charging. The image overlap for this pair was ~90%. This image pair was taken before the use of a pre-exposure timing on the camera shutter.