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ApertureBuy the right telescope, not the biggest one

Instrument class

Smart telescope (50–80 mm, integrated camera)

A small telescope with a camera where the eyepiece would be, driven from a phone. It finds the target, tracks it, stacks exposures, and hands you an image in a few minutes.

Specifications for this class
Aperture5080 mm
Focal ratiof/4.5–f/6
Typical weight3 kg
Setup time4 minutes
Learning curve1 out of 5
Price band4502600
Useful magnification11× to 130× at 65 mm

What it does well

  • Shows colour and structure in nebulae that no eyepiece at this aperture ever will
  • Works under a city sky far better than visual observing does
  • Set up in minutes, operated from indoors if it is cold

What it costs you

  • There is nothing to look through. If the appeal is photons hitting your own retina, this is the wrong category
  • The image is the instrument's, not yours — limited control over how it is made
  • A fast-moving product category; anything written about it dates within a year

Fit against each goal

  • First astrophotography · 4 out of 5

    The shortest path from nothing to a recognisable image of a nebula.

  • Sharing it with children · 4 out of 5

    A picture on a phone holds attention that a grey smudge in an eyepiece does not.

  • Taking it with me · 4 out of 5

    Small, self-contained, battery powered.

  • Nebulae, clusters and galaxies, by eye · 2 out of 5

    It shows you deep sky, but not by eye. Score depends entirely on whether that distinction matters to you.

  • The Moon and the planets · 2 out of 5

    Small aperture and short focal length. The Moon works; the planets are underwhelming.

Models in this class

Indicative European street prices with the date they were observed. Ordered by price. Links marked earn us a commission and cost you nothing extra.

  • ZWO Seestar S50

    560seen 2026-08-17

    50 mm · 250 mm focal length · f/5.0 · 3 kg

    With a 10 mm eyepiece: 25×, 2.0 mm exit pupil.

    Mount Integrated alt-az tracking, phone app

    No eyepiece and no way to fit one. Under a city sky it will show you more nebulae in an evening than a 200 mm will show you all year — and you will not have seen any of them with your own eye.

    Where to buy

    None of these links earn us anything.

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