Set of binoculars and telescopes different Vector Image
Binoculars vs telescopes: which is better for stargazing? | T3
Can binoculars be used as a telescope? Can a telescope be used as binoculars? If yes, what are some advantages of each system over another one? - Quora
Viewing Angle- Straight-Through vs. 45° vs. 90° | Oberwerk
Binocular basics
Spotting Scopes vs. Telescopes for Beginner Astronomers | B&H eXplora