Those are great, I especially like your Jupiter
If you've got Magic Lantern with the raw video module on your mkIII you can shoot in raw zoom mode where it takes video at 1:1 pixels off the sensor. This won't give you any more focal length than shooting stills but it will mean that you can process and stack those video frames to get significantly more detail. Note that this is different to just shooting 1080p video normally which takes the full image off the whole sensor and shrinks it down to 1920x1080.