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This should not happen in any regular case unless someone who really knows what they are doing played with the controls. This happens when the mirror lockup is turned on. Turn mirror lock up off. 

Analysis

A sample jupyter notebook with instructions for analysis is here.

View filenameDIMSUM_Sample_Analysis_Notebook.ipynbheight250See Software Analysis of Differential Image Motion for the analysis of DIMSUM data.

Calibration (Stubbs, Jan 29, 2023)

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