Galileo considered his theory of the tides to provide the required physical proof of the motion of the earth.
Tamron 18-270 Di II lens
1&1/2 hour exposure
A Rular area is a must for this kind of shots.
Big city's have a lot of "light pollution" & is impossible to capture the movement of the stars.
Find the scene that you like,compose,frame it & you are ready!
A tripod & a dslr with "bulb" function is a must.
Set the focus to "manual" & focus to infinity (so you have the Hyperfocal distance).The concept of hyperfocal distance is easy to understand: focus a lens at the hyperfocal distance and everything in the photograph from some near distance to infinity will be sharp. Landscape photographs are often taken with the lens focused at the hyperfocal distance; near and distant objects are sharp in the photos.
Try different settings (f number) but the iso should be the lowest possible!
3-5 shots are enough to get a good result.
Here you see 3 vertical frames of 30 minutes each.
Hope i help with this s.b.s & keep shooting.....
:) (5 years and 1872 days ago)