EMBL Heidelberg 19/05/2022 Krios1 Quantum-K2 Cs 2.7 300kV EFTEM nanpprobe x130k spot 8 beam size 650nm c2=50 objective_aperture=100 GIF-K2 counting 10s exposure 40 frames total dose at the sample 53.79e/A2 1 pixel = 1.04A dose rate ~4-5 e/pix/s defocus range -0.8 to -2.0