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Counterweights

Omegon 2.6 kg counterweight (59253)

A steel counterweight of 2.6 kg with a 21 mm bore and a locking screw, made for the EQ-500 X and fitting many other shafts.

Omegon 2.6 kg steel counterweight with locking screw

Omegon 2.6 kg counterweight (59253)

A steel counterweight of 2.6 kg with a 21 mm bore and a locking screw, made for the EQ-500 X and fitting many other shafts.

Mass
2.6 kg, as the maker publishes it
Bore diameter
21 mm, as the maker publishes it
Locking method
A locking screw for a secure seat
Coating
Steel
Finish
Not published by the maker.
Compatible mounts
EQ-500 X · The maker names Skywatcher, Meade and Celestron shafts
Overall dimensions
Not published by the maker.
Amazon reference
B07JCR2XYG (same reference on 6 Amazon marketplaces)
EAN
4049467592532
  • Both figures that matter — mass and bore — are published
  • The maker tells you to measure your own shaft before ordering
  • A 21 mm bore will not fit a 20 mm shaft securely, nor a 14.7 mm one at all

Best for: Balancing a heavier tube or a camera on a 20–21 mm counterweight shaft

≈ £36 / €37
Check price on Amazon

Specifications

Mass
2.6 kg, as the maker publishes it
Bore diameter
21 mm, as the maker publishes it
Locking method
A locking screw for a secure seat
Coating
Steel
Finish
Not published by the maker.
Compatible mounts
EQ-500 X · The maker names Skywatcher, Meade and Celestron shafts
Overall dimensions
Not published by the maker.
Amazon reference
B07JCR2XYG (same reference on 6 Amazon marketplaces)
EAN
4049467592532

Two numbers, and the maker names both

Two point six kilograms and a twenty-one millimetre bore. Those are the only two specifications a counterweight has, and plenty of listings on this shelf publish only the first.

The instruction worth following

Omegon says it directly: measure the diameter of your own counterweight shaft before ordering. That is the step that goes wrong, and it takes ten seconds with a ruler.

Steel

Denser than cast iron for the same mass, so the weight is physically smaller and sits closer to the shaft. On a short shaft that matters — a bulky weight can foul the tripod when the mount swings.

Where it belongs

On a mount whose balance has changed, which happens the moment a camera, a guide scope or a heavy eyepiece is added. A mount balanced with a bare tube and then loaded with two kilograms of accessories is not balanced.

Availability

German, French, Italian and Spanish Amazon stores ran from 37 € to 41 € on the day of the survey.

British Amazon store lists it in local currency, which the euro range above sets aside.

American Amazon catalogue holds a record for it that nobody is selling.

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 17 September 2026. The live price is at the top of the page.

What this fits

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    Mass
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    Bore diameter
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    Locking method
    The listing gives none
    Coating
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    Finish
    Not published by the maker.
    Compatible mounts
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    Overall dimensions
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    EAN
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    Mass
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    Bore diameter
    The listing gives none
    Locking method
    Not published by the maker.
    Coating
    Not published by the maker.
    Finish
    Not published by the maker.
    Compatible mounts
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    EAN
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    Mass
    2.0 kg, as the maker publishes it
    Bore diameter
    20 mm, as the maker publishes it
    Locking method
    Not published by the maker.
    Coating
    Not published by the maker.
    Finish
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    Compatible mounts
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    Overall dimensions
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    EAN
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The rest of this rack

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    The Telrad projection finder, named by the maker
    Outside diameter
    Not published by the maker.
    Shield length
    Not published by the maker.
    Construction
    Dew cap for a projection finder · Impact-resistant plastic
    Heater width
    Not published by the maker.
    Power draw
    Not published by the maker.
    Controller support
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    Cable
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    Connector
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    Amazon reference
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    Power draw
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    Controller support
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    Cable
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    Connector
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    Length
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    Hole spacing
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    Slots
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    Material
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    Safety stops
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