Acceleration Voltage: 300 kV Cs: 0.01 mm (corrected by Cs corrector) Total Dose: 60 electron/angstrom^2 Frames: 66 frames Energy Filter: 20 eV Record Mode: K3 (CDS mode) Defocus Range: -0.5 μm to -1.7 μm.
gain_220416.mrc as a gain reference without rotation and flipping.