← 1.7° → true field
100° apparent field
Poor fit· Explore Scientific 20mm 100° on the Sky-Watcher Classic 200P Dobsonian
Why this eyepiece?
- ✓Balances detail with surrounding context
- ✓A comfortable everyday view of M13
Try a shorter focal length eyepiece for more detail
The showpiece globular cluster. Small scopes show a fuzzy ball; large apertures resolve thousands of stars.