frames were split into and odd and even halves containing the 1st, 3rd, 5th... and 2nd, 4th, 6th... patterns respectively. This procedure of splitting is chosen in order for both halves to be similarly affected by slowly varying drifts in the experiment. It is also sufficiently random because the “hits" themselves are a random subset of all the patterns collected.

The FSC and CC$_{1/2}$ plots are shown in Fig. \[fig:full-metrics\]. The crystallographic definition of $q$ is used with the full-period resolution, $d = 1/q$. Each of the metrics gives a slightly different estimate of the resolution of the reconstruction. from the half-bit FSC criterion standard common in cryo-electron microscopy [@VanHeel:2005], the resolution is , while using the CC$_{1/2} = 0.5$ cutoff, the intensities are reproducibly reconstructed to a resolution of . The purely phasing metric, PRTF, suggests that the resolution is for both the even and odd data sets. The oscillations apparent in the PRTF plot, which manifest from fringe intensities in the data, further reveal how resolution determined by the PRTF metric can be dramatically affected by whether or not values in one of the local minima happen to lie above or below the 0.37 threshold value. That the 