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Omegon AC 70/700 AZ-2 review

Omegon's AC 70/700 AZ-2: an achromatic 70/700 refractor on an alt-azimuth mount with a 1.25-inch eyepiece holder, assembled without tools, with a stated maximum of 140x.

Long and slow

Seventy millimeters at 700 mm is f/10. A slow achromat keeps the violet fringe of a two-element lens faint, and simple eyepieces work at their best. That suits the Moon, Jupiter, Saturn and double stars.

A stated ceiling

Omegon gives a maximum of 140x, twice the aperture in millimeters, and says the 70 mm collects 36% more light than a 60 mm. Both are honest numbers.

Standard fittings

The eyepiece holder is 1.25 inches (31.75 mm), so any standard eyepiece, filter or Barlow fits. The listing says it assembles without tools.

What is not on the US listing

The supplied eyepieces and the focuser type.

Price and availability

On November 7, 2026, Amazon.com listed it at about $167 from a third-party seller.

Figures as Keepa reported them on the day this page was last updated. Stock and pricing shift without warning.

Prices quoted in this text were read on November 7, 2026. The live price is at the top of the page.

Its two nearest scopes on price

Same aisle, closest price — what the same spend else shows.

What it publishes, and what it withholds

Strengths

  • f/10: little false color, easy on eyepieces
  • 1.25 in eyepiece holder for all standard eyepieces
  • Realistic 140x maximum stated

Compromises

  • Accessories not itemized on the US listing
  • About $167 from a third party
  • 70 mm limits faint objects

Specifications

Aperture70 mm (2.76 in), stated · 36% more light than a 60 mm, stated
Focal length and ratio700 mm (27.6 in) · f/10, the quotient of the published figures · maximum magnification 140x, stated
Lens designAchromatic refractor (AC)
Glass typeNot published by the maker.
FocuserNot published by the maker.
Drawtube1.25 in (31.75 mm) eyepiece holder for all standard eyepieces
Tube weightNot published · Amazon's item data gives 4 kg (8.8 lb) for the shipment
Supplied accessoriesAZ-2 alt-azimuth mount · tripod · eyepieces not itemized on the US listing · assembly without tools
Amazon referenceB004EVVYTW
EAN4049467206439

What observers ask about this one

What does f/10 buy?

A slow achromat shows little of the violet fringe that fast ones do, so the Moon and Jupiter look clean. Simple eyepieces work well at f/10.

Is 140x realistic?

Yes. It is twice the aperture in millimeters, the usual ceiling, and Omegon states it rather than an inflated figure.

How does it compare with the Bresser JUNIOR?

Longer and slower, for planets; the Bresser is shorter and wider, for children. See [Bresser JUNIOR 70/400 vs Omegon AC 70/700](/comparisons/bresser-junior-70-400-vs-omegon-ac-70-700/).

Our score

7.8/ 10

A long-ratio 70 mm on a mount a beginner can aim, sold with its maximum stated honestly at twice the aperture.

The price on Amazon.com

This model is listed on Amazon.com, at ≈ $167 at the last reading. Listed is not the same as in stock: availability changes daily, and the buy box shows the live price.

Details checked on November 7, 2026.

This one and its buyer, among astronomy instruments

An adult or older teenager starting with the Moon and planets

Sources

Specifications: the manufacturer sheet for telescopes and observing optics and the matching Amazon product page. Prices and availability: Keepa. Every figure on this page names its source.

The way we judge these astronomy instruments