Did some test photos of sky with EOS350D digital camera.
All using 75-300 f/4-5.6 telephoto on objects near equator.
Max time for no trailing...
8" 75mm f/5 iso 400
4" 300mm f/5.6 iso 800
Obvious trailing...
8" 300mm f/5.6 iso 1600
I usually write a blog post about once a week. The latest post can be viewed here: Avoid Microsoft: If you don't really like computers much you could make things a bit better for yourself. (posted 2024-12-04 at 12:05:50). I do podcasts too!. You can listen to my latest podcast, here: OJB's Podcast 2024-11-18 Unity Through Division: Sometimes hard decisions need to be made to make genuine progress..