I just had it on a tripod. I hope to get the Min-EQ & motors soon to do at least 5 minute exposures without trailing if properly polar aligned.
13 seconds I believe was too much, I didn't know I could do 13 seconds at 42mm. I might get 14-15 @ 37mm which is the minimum I have with 24-70mm cropped 1.54x sensor. I really need to borrow my friends 80-200 F2.8 when I get the mount & motors