Recently I examined ISS shot by telescope. Still on the way to get fine pict but as 1st step,the key is scope movement. My trial is to use Equational mount (old Mizar eq-mount which is too old to get astronomical pict btw) by manual movement with Steel Camera (EOS 60D).ISS pass information is available by many appplication(ex Heavens-Above etc). Set up mount to direct EQ-axis to highest point and easier to trace ISS in the camera screen before passing highestime ,harder to trace after highest point.Also not easyto see camera finder at around Zenith point.This point needs to be fixed because closest picture available at ths timng. Expose time1/800-1/1600,ISO1600seems good.Here some shots sofar. 1st Mar06th 2022 ,2nd Apr05 2022. Tobe continued this trial .Scope is Vixen R60mm f=900 with EOS 60D.
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