Best Eyepiece Focal Length for Planets: Magnification Guide
Find the right eyepiece focal length for viewing Jupiter, Saturn, Mars and Venus. Magnification ranges, the 2× aperture limit and a quick calculation method.
2 articles
Eyepieces and Filters
Eyepieces and Filters
-
-
Do You Need a Moon Filter for a Telescope? Beginner Guide
Find out whether a Moon filter is worth buying for your telescope, with a simple side-by-side test to check glare and detail before you spend money.