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. Author manuscript; available in PMC: 2012 Dec 1.
Published in final edited form as: J Struct Biol. 2011 Sep 10;176(3):404–408. doi: 10.1016/j.jsb.2011.09.002

Figure 1.

Figure 1

Comparison of detection limit between cameras installed on the same microscope using identical instrument conditions and almost matching pixel size. Fourier transforms and radially averaged power spectra of 3K × 3K cropped images from: (A) DDD (1.38Å/pixel) and (B) CCD (1.37Å/pixel). High tension 200 KeV, electron dose ~20e−/Å2, exposure time 400ms. The modulation transfer function is shown in (C) for the CCD and DDD cameras calculated using the edge method.