Comparison
The Telescopes, Telescope for Kids and Adults Beginners edges out the Gskyer 70AZ despite their identical aperture and focal length, thanks to a significantly faster optical design. Both share the same 70mm aperture and 400mm focal length, but the Telescopes model's f/2.0 ratio dramatically outpaces the Gskyer's f/5.7, gathering light roughly eight times more efficiently. This superior light-gathering capability translates directly into brighter, clearer images, particularly for deep-sky observation where the Telescopes model scores 45 versus the Gskyer's 39. The focal ratio is the single most important differentiator here.
Faster optics mean fainter galaxies and nebulae become visible, and dim objects appear considerably brighter. The Telescopes model also costs $24 less while delivering better astrophotography and deep-sky scores. The Gskyer's only advantages are slightly better overall performance metrics and lower weight, though the difference is marginal. The Gskyer 70AZ suits observers prioritizing portability and balanced performance across all observing types.
The Telescopes, Telescope for Kids and Adults Beginners is the better choice for anyone focused on deep-sky objects or astrophotography on a tight budget. Choose the Telescopes model unless weight is your primary concern.
Why choose Gskyer 70AZ
Why choose Telescopes, Telescope for