matine camera actor wobbles / trembles


i want to record a movie - my camera actor is not moving. it is just a earth ball form space with moving clouds and a fix camera.
but when i render the movie in matinee (1920x1080 / 30fps jpg sequence) the camera starts to tremble. every image has a little pixel shift.

maybe you know this behavieour from matinee when you click under tracks the little camera icon.

but why does this happen? is there a way to avoid this annoying behaviour?

thanks for every advise

best regards simon.