46
47
600mm 138.8’ X 90.6’
750mm 111’ X 72.5’
900mm 92.5’ X 60.4’
appendix B. Field of View Quick reference Guide
For your convenience, refer to the list of common telescope focal lengths and their corresponding fields of view provided
by the StarShoot Pro. The angular field of view is shown in arc-minutes. The image scale shows the relative size of two
reference objects; the Moon and the Orion Nebula.
Telescope Focal Length Angular Field of View Image Scale of the Moon Image Scale of M42
400mm 208.2' X 135.9'
500mm 166.6' X 108.7'