How You Can Monocular Telescopes Keep One Eye For Your Subjects! 

A telescope will normally have a lens of 20mm to 42mm. A lens that is larger will allow you to find a larger perspective. A lens that is bigger will also result in a bigger, brighter image when searching through your telescope. The downside is that the bigger the lens isalso, the more heavier and bulkier your left handed is likely to undoubtedly be. https://www.marketwatch.com/press-release/starscope-monocular-review---new-state-of-the-art-device-2020-03-03