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Simulated diffraction patterns from MLFSOM (Holton, 2008 ▶) with spots of various intensities blurred by either (a) a Gaussian filter or (b) the ‘solid angle’ PSF model proposed here. Both of these blurring filters have the same FWHM and the 16-bit images were histogram-equalized before display in ADXV (Arvai, 2012 ▶; Szebenyi et al., 1997 ▶). The faint tails of the PSF make bright spots appear much larger than weak spots in (b), but not in (a).
