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Dianfan 90800 90mm Refractor Telescope, 800mm Focal Length1 / 6
Product guide

Dianfan 90800 90mm Refractor Telescope, 800mm Focal Length

The Dianfan 90800 refractor telescope pairs a listed 90mm objective with an 800mm focal length and manual focus. Its beginner-oriented kit claims a tripod, phone adapter and carrying bag, while the high listed magnification range makes the real-world viewing limits worth considering.

At a glance

  • A 90mm objective and 800mm focal length are listed for this refractor.
  • The listing describes manual focusing and an altazimuth mount.
  • The feature text says the kit includes two eyepieces and a 3× Barlow lens, and claims the telescope can show lunar surface details.
  • A 45° zenith mirror is described for upright terrestrial viewing.
  • The seller claims assembly takes about 15 minutes and describes the telescope as portable.
Price
$149.98Save 25%

Reference price: $199.99

Price checked: Nov 14, 2026

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Often bought together

Pros and cons

Pros

  • The listed 90mm objective and fully coated optics provide a clear specification basis for a beginner-focused astronomy setup.
  • Manual focus and an altazimuth mount offer straightforward, hands-on operation.
  • The listing describes a phone adapter and a carrying bag, which may help with basic phone imaging and transport if included in the selected package.

Cons

  • The listed 4.7 kg weight and stated dimensions are relevant trade-offs for buyers prioritizing easy carrying.

Technical specifications

14 specifications
Identity
BrandDianfan
Model90800
Optics and operation
Objective lens diameter9 centimeters
Focal length800 millimeters
Eyepiece lensKellner
Focus typeManual Focus
Magnification range listed32×–240×
Optical coatingFully Coated
Field of view1.56 degrees
FinderscopeStraight-Through
MountAltazimuth Mount
Dimensions and installation
Dimensions listed31"D x 11"W x 5"H
Optical tube length80 centimeters
Weight listed4.7 kg

What to know before buying

  • The magnification range of 32×–240× is a listing claim, not a guarantee of useful detail at every setting. Views are also affected by weather and light pollution. Use level ground for the tripod, and consider a darker location for faint celestial objects.

Who is it for?

A good fit for

  • Beginners seeking a manual refractor for introductory Moon and night-sky viewing.
  • Buyers interested in a telescope the listing also describes for birdwatching or terrestrial viewing.
  • People who want a phone-adapter option for attempting telescope photos.

Less suited to

  • Buyers who want a computerized or motorized mount. The listed mount is altazimuth.
  • People looking for a verified lightweight travel setup or guaranteed high-magnification performance.
Dianfan 90800 90mm Refractor Telescope, 800mm Focal Length · photo 2
Additional product photo 2

Customer reviews on Amazon

4.3 / 5 · 710 ratings
  • 5 stars73%73%
  • 4 stars9%9%
  • 3 stars6%6%
  • 2 stars3%3%
  • 1 star9%9%

Customer feedback highlights ease of setup, clear views of the Moon and planets, portability and the carrying case. These impressions align with the product's manual-focus beginner positioning and listed bag, though the listing's 32×–240× range should not be taken as a promise of clear results at every setting. The aggregate ratings are mostly favorable but include a smaller low-star share, so experiences are not uniformly positive.

Positive themes

  • Customers report easy setup and use, clear lunar and planetary views, and appreciate portability and the carrying case.

Frequently asked questions

What magnification range is listed?

The listing gives a range of 32×–240× and describes two eyepieces with a 3× Barlow lens. The stated range does not guarantee equally useful views at every magnification.

Can it be used for viewing objects on land?

The listing describes a 45° zenith mirror that provides upright images for terrestrial viewing, and names birdwatching and wildlife observation as possible uses.

What should I know about observing conditions?

The product information advises choosing calm, cloudless conditions and using flat ground for the tripod. It also notes that city light pollution can obscure faint celestial objects.

Dianfan 90800 90mm Refractor Telescope, 800mm Focal Length · photo 3
Additional product photo 3

Alternative options

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