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Counterweights

Sky-Watcher EQ6-R counterweight (S30101)

Sky-Watcher's 11 lb counterweight for the AZ-EQ5, EQ6 and EQ6-R mounts, sold on a listing of one bullet and one sentence.

Sky-Watcher white cast counterweight with a central bore

Sky-Watcher EQ6-R counterweight (S30101)

Sky-Watcher's 11 lb counterweight for the AZ-EQ5, EQ6 and EQ6-R mounts, sold on a listing of one bullet and one sentence.

Mass
11 lb (5 kg), stated
Bore diameter
Not published by the maker.
Locking method
Not published by the maker.
Coating
Not published by the maker.
Finish
White, per the title
Compatible mounts
AZ-EQ5, EQ6 and EQ6-R, stated
Overall dimensions
Not published by the maker.
Amazon reference
B0758P6QQZ
EAN
0050234301015
  • Named compatibility: AZ-EQ5, EQ6, EQ6-R
  • Sold directly by Amazon
  • Bore diameter not published

Best for: An AZ-EQ5, EQ6 or EQ6-R that needs a large extra increment on the bar

≈ $55
Check price on Amazon

Specifications

Mass
11 lb (5 kg), stated
Bore diameter
Not published by the maker.
Locking method
Not published by the maker.
Coating
Not published by the maker.
Finish
White, per the title
Compatible mounts
AZ-EQ5, EQ6 and EQ6-R, stated
Overall dimensions
Not published by the maker.
Amazon reference
B0758P6QQZ
EAN
0050234301015

Eleven pounds, three mounts

The listing says it works on the AZ-EQ5, EQ6 and EQ6-R, and weighs 11 lb. That is the whole of it: one bullet and one sentence.

Why it matters

A German equatorial mount has to be balanced, the telescope on one side, weights on the other. Adding a camera, guide scope or heavier tube means adding weight. An 11 lb unit is a large single step.

What is not published

The bore diameter, the locking method and the dimensions. On any mount not named, measure the counterweight bar before ordering.

Price and availability

On November 7, 2026, Amazon.com sold it directly at $55.00.

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.

What gets asked before buying

Will it fit my mount?

Sky-Watcher names the AZ-EQ5, EQ6 and EQ6-R. On another mount, measure the counterweight bar first; the bore is not published.

Why add a counterweight?

A German equatorial balances the telescope against weights on the opposite bar. A heavier tube or a camera and guide scope needs more weight, or the same weight farther out.

Does it fit the AZ-EQ6?

The listing does not name the AZ-EQ6. Check the bar diameter against the [AZ-EQ6](/reviews/goto-mounts-sky-watcher-azeq6/) before ordering.

What barrel it suits

The rest of this rack

  • Briny River M42 to M48 anodized aluminum step-up ring

    Briny River M42 to M48 step-up ring (390-EG)

    A step-up ring converting the T-2 thread to M48, so that 2 in filters and M48 accessories can be fitted to T-2 components.

    Slot count and filter size
    M42 × 0.75 male — the T-2 thread · M48 × 0.75 female — the 2 in filter thread
    Optical path length
    The listing gives none
    Manual or motorized operation
    A thread adapter — no optics, and not a filter wheel
    Light sealing
    Aluminum alloy, anodized
    Power
    Not published by the maker.
    Software support
    Not published by the maker.
    Amazon reference
    DE B0FM49SGJH · US B0FM48JF46 · GB B0FM48JF46 · FR B0FM48JF46 · IT B0FM48JF46 · ES B0FM48JF46
    EAN
    4895264934644
    • Both threads are named precisely with pitch, which is what an adapter listing must do
    • Anodized aluminum resists the corrosion that ruins a thread left damp
    • No length figure, and every adapter consumes back focus

    Best for: Putting an M48 filter or accessory onto a T-2 threaded component

    Check price on Amazon
  • K&F Concept Nano-X 67 mm natural night filter

    K&F CONCEPT Nano-X Natural Night 67 mm

    K&F Concept's Nano-X Natural Night filter: a 67 mm camera-lens filter that blocks sodium streetlight wavelengths of about 580 to 610 nm, in Japanese optical glass with a 28-layer coating on both faces.

    Blocked wavelengths and published curve
    About 580 to 610 nm blocked, stated · no curve published
    LED and sodium behavior
    Targets the yellow, beige and orange light of common artificial sources (sodium) · LED behavior not stated
    Visual or photographic design
    Photographic: a 67 mm camera-lens filter for night landscape and astrophotography
    Coating and glass
    Japanese optical glass · 28-layer nano coating on both faces · scratch, water, oil and dust resistant
    Thread size
    67 mm (2.64 in) camera-lens thread
    Weight
    68 g (2.4 oz)
    Focal ratio limits
    Not published by the maker.
    Maker reference
    FT011117 (Nano-X series)
    Amazon reference
    B07PG785HC
    EAN
    6936069223248
    • Blocked band published: about 580 to 610 nm
    • 28-layer coating on both faces
    • Camera-lens filter: does not fit a telescope eyepiece

    Best for: Wide-field tracked photography with a 67 mm camera lens under sodium-lit skies

    Check price on Amazon
  • SVBONY 1.25 inch CLS light pollution filter

    SVBONY CLS 1.25 in (FUSF9155A)

    SVBONY's 1.25-inch CLS broadband filter: 90% transmission at the H-beta, OIII, H-alpha and SII nebula lines and 0.1% at the sodium and mercury lines of artificial lighting, with ion-assisted coatings.

    Blocked wavelengths and published curve
    Off-band 0.1% at sodium 589 nm and mercury 435 and 578 nm · pass-band 90% at H-beta 486, OIII 496 and 500, H-alpha 656, SII 672 nm
    LED and sodium behavior
    Sodium and mercury lines blocked, stated · LED behavior not stated
    Visual or photographic design
    Broadband, stated suitable for color CCD cameras and unmodified DSLRs
    Color cast
    Not published by the maker.
    Thread size
    1.25 in
    Focal ratio limits
    Not published · central wavelength stated stable with temperature
    Amazon reference
    B079BWD595
    EAN
    0609378745577
    • Pass-band and off-band transmissions published at named lines
    • Ion-assisted deposition coating, stated durable
    • Little effect on white LED light pollution

    Best for: Imaging or observing emission nebulae from a town, with a color camera or by eye

    ≈ $32
    Check price on Amazon

All counterweights