here picture of separation of rocket booster and rocket it self first night shot so give me some times had to use view finder and camera could not find it any highest iso or lowest iso to get good perfect shot. need to learn how to do better night time shots with just stars and rocket.
second picture from my setting.
4/5 sec. f/2.8 200mm
100
first picture from view finder
seperation done in view finder
1/6 sec. f/2.8 200mm