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ApertureBuy the right telescope, not the biggest one

Instrument class

10×50 binoculars

Two small refractors you can hold. The most-recommended and least-bought first instrument in astronomy, and the one most likely to still be in use in ten years.

Specifications for this class
Aperture50–56 mm
Focal ratiof/4–f/5
Typical weight0.9 kg
Setup time1 minutes
Learning curve1 out of 5
Price band€70–250
Useful magnification9× to 106× at 53 mm

What it does well

  • Ready in the time it takes to open the case
  • Both eyes, which makes faint things easier to see than the same aperture through one
  • Five to seven degrees of sky at once — no telescope shows the Pleiades whole
  • Useful for birds, and therefore used in daylight too

What it costs you

  • The planets stay dots. Jupiter's moons show; its belts do not
  • Hand shake costs about a magnitude of faint detail — a tripod adapter fixes it
  • No magnification to grow into

Fit against each goal

  • Learn my way around the sky · 5 out of 5

    Nothing else teaches the sky this fast. Wide field, right way up, and the view matches what a star chart shows.

  • Taking it with me · 5 out of 5

    Fits in a coat pocket's worth of bag.

  • Sharing it with children · 4 out of 5

    A child can hold them, and there is nothing to break or misalign.

  • Nebulae, clusters and galaxies, by eye · 3 out of 5

    Star clouds, big clusters and the brighter nebulae, in fields no telescope can frame.

  • The Moon and the planets · 1 out of 5

    The Moon is genuinely lovely at 10×. The planets are points of light.

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.

  • Olympus 10×50 DPS-I

    €95seen 2026-08-17

    50 mm · 200 mm focal length · f/4.0 · 0.85 kg

    With a 10 mm eyepiece: 20×, 2.5 mm exit pupil.

    The long-standing budget benchmark. Nothing clever, nothing wrong.

    Where to buy

    None of these links earn us anything.

  • Nikon Aculon A211 10×50

    €120seen 2026-08-17

    50 mm · 200 mm focal length · f/4.0 · 0.9 kg

    With a 10 mm eyepiece: 20×, 2.5 mm exit pupil.

    Porro prism, comfortable eye relief. Heavy enough after ten minutes that a tripod adapter is worth the €15.

    Where to buy

    None of these links earn us anything.

See whether this class suits you →