Quote Originally Posted by zakato View Post
So I'll assume then that the minimal vertical step for m1 is 7.5º (starting at 0º)
right :)

Quote Originally Posted by zakato View Post
... just out of curiosity, what are the two little calibration marks then for
are you referering to the two little marks aside of the main mark on fixed part of rotator ? if so it's just for design, no real utility from what I know ;)

Vincèn