A 70mm aperture refractor telescope allows you to see the moon’s craters, large planets like Jupiter and Saturn, and the brightest stars in the night sky.
The 70mm Refractor Telescope provides a 700mm focal length and a 70mm aperture to gather light for lunar and planetary viewing. Because the 70mm aperture is the minimum diameter required to resolve lunar craters and Jupiter’s moons clearly, this telescope sits at the entry point for serious amateur astronomy. We selected this model for our review because it offers the specific 28x-210x magnification range required for these targets. To see faint deep-sky objects like nebulae, you must check the manufacturer’s compatibility page for specific high-contrast filters or larger eyepieces. Atmospheric seeing and local light pollution will affect your view, often making dimmer targets invisible regardless of the telescope’s 70mm aperture. You should also check the manual to see how long it takes to achieve a clear focus, as a slow focusing process can make finding distant objects frustrating.
What to Check Before Buying the 70mm Refractor Telescope
Before purchasing this telescope, verify these technical details to ensure the device meets your specific viewing needs.
- Check the maximum magnification limit to ensure the image remains sharp and does not become blurry.
- Verify if the included mount allows for smooth tracking of moving objects to prevent them from drifting out of the field of view.
- Confirm the field of view width to ensure you can locate objects easily without a high-precision pointing system.
- Identify which additional eyepieces are required to reach the upper end of the 210x magnification range.
- Check the tripod’s height adjustment range to ensure it reaches your desired viewing angle.
Comparing the 70mm Refractor Telescope to Other Options
This telescope serves as a glass lens tube on a tripod that gathers light to magnify distant objects, specifically categorized as a refractor telescope. If you require high-contrast imaging of small, faint galaxies, you may want to look at 3-inch to 4-inch ED refractors which use extra-low dispersion glass to eliminate color fringing. Users who prioritize a wide field of view for large star clusters might also consider larger aperture options that exceed the 70mm limit. However, for a beginner who wants a stable, portable setup for the moon and planets, this 70mm model provides the necessary focal length for those specific targets.
If you need a specific recommendation, see our comparison of the best 70mm refractor telescope.
If you are a beginner looking for a stable way to view the moon and major planets, the 70mm Refractor Telescope is a suitable choice for your first telescope.
70mm Aperture 700mm Focal Length Refractor Telescope
Serious hobbyists can find more options by viewing the top-rated refractor telescope for adults.
$179.99 price checked August 2026
Where to go next in our Refractor coverage
- Which 90mm Refractor Telescope Is Best for Astronomy?
- Best 80mm Refractor Telescope for Astronomy
- 70mm Refractor Telescopes for Astronomy Compared
- Choosing the Best Refractor Telescope for Adults
- The Refractor Telescopes That Work Best for Portable Use
- Beginner Refractor Telescopes for Stargazing Compared