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IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.
IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.
PrimaLuceLab Counterweight PLUS 1Kg

PrimaLuceLab Counterweight PLUS 1Kg

by PrimaLuceLab
SKU PLL-CONTRPLUS
$35.00 - $35.00
$35.00
$35.00 - $35.00
$35.00
Price Match Policy!
  • Adds 1 Kg of targeted weight to your optical tube
  • Part of the PrimaLuceLab PLUS modular system
  • Attaches to Vixen or Losmandy plates via an optional PLUS clamp
  • Stackable design allows for adding more weight as needed
  • Enables precise balance for heavy imaging or visual accessories
1 in stock
Qualifies for FREE Shipping in CONUS on orders over $350.
  • Description
  • FAQ
  • Specifications
  • In the Box
  • Downloads
  • Warranty

  • PrimaLuceLab Counterweight PLUS 1Kg

    The PrimaLuceLab Counterweight PLUS adds a precise 1 Kg of weight directly to your optical tube assembly (OTA), providing the critical mass needed to achieve perfect balance when using heavy cameras, filter wheels, or visual accessories.

    A 1 Kg Solution for Fine-Tuning OTA Balance

    When an imaging train makes your telescope front-heavy, or a large eyepiece makes it tail-heavy, simply moving the OTA in its rings isn't always enough. This 1 Kg counterweight allows you to add a discrete amount of weight exactly where it's needed—on the tube itself—to correct imbalances that traditional declination or right ascension weights can't address.

    Secure Mounting on Vixen or Losmandy Clamps

    Designed as part of the integrated PrimaLuceLab PLUS system, this counterweight attaches securely to any Vixen or Losmandy style dovetail bar using an optional PLUS dovetail clamp. This gives you the freedom to position the weight along the front or back of your telescope's support plate, ensuring you can counteract load imbalances with precision. The compact profile ensures it won't interfere with your mount or other accessories.

    Stackable Design for Evolving Imaging Rigs

    As your astrophotography setup grows, so can your counterweight solution. The Counterweight PLUS 1Kg is designed to be modular; multiple weights can be screwed directly together using the included hardware. This allows you to create a 2 Kg, 3 Kg, or heavier stack without needing additional clamps, adapting to the changing balance points of your evolving imaging rig.

    PLUS Counterweight vs. Traditional Shaft Weights: Why OTA Balance Matters

    A mount's main counterweights are designed to balance the load around the RA and Dec axes, but they do nothing to balance the OTA itself. An unbalanced OTA puts uneven stress on the focuser and can cause tube flexure or slippage within its rings.

    • Traditional Shaft Weights: Balance the entire telescope and mount system around its axes of rotation. They are essential for motor and gear longevity.
    • PrimaLuceLab PLUS OTA Counterweight: Balances the optical tube assembly itself. This is critical for maintaining collimation, preventing focuser sag with heavy cameras, and ensuring the tube doesn't shift when clutches are released.

  • When would I need the PrimaLuceLab Counterweight PLUS 1Kg instead of a regular mount counterweight?

    You need the PrimaLuceLab Counterweight PLUS 1Kg when your telescope tube itself is unbalanced, even if the mount's axes are balanced. This commonly happens when a heavy camera setup makes the scope front-heavy or a large eyepiece makes it tail-heavy. This weight corrects the balance of the OTA, while standard counterweights balance the entire assembly on the mount.

    How do I attach the PrimaLuceLab Counterweight PLUS 1Kg to my telescope?

    The counterweight is designed to be attached to your telescope's Vixen or Losmandy style dovetail plate using an optional PrimaLuceLab PLUS dovetail clamp. This allows you to slide the weight along the plate to find the perfect balance point.

    Can I stack multiple PrimaLuceLab 1 Kg PLUS counterweights together?

    Yes. The counterweights are designed to be modular. You can screw multiple units together using the included screws to create a heavier weight stack (2 Kg, 3 Kg, etc.) without needing to purchase additional mounting clamps.

    Will the PrimaLuceLab Counterweight PLUS 1Kg fit on both Vixen and Losmandy style plates?

    Yes, but it requires the correct clamp. The counterweight itself is part of the PLUS system and connects to a PLUS dovetail clamp (sold separately). You would choose a Vixen-style PLUS clamp to attach it to a Vixen plate, or a Losmandy-style PLUS clamp for a Losmandy plate.

    My 8" SCT is front-heavy with a camera. Where should I place the PrimaLuceLab Counterweight PLUS 1Kg?

    To counteract the front-heavy load of your camera on an 8" SCT, you should mount the PrimaLuceLab Counterweight PLUS 1Kg on the dovetail bar towards the rear of the telescope, near the primary mirror. This will shift the center of gravity backward, achieving a neutral balance.

    I'm using a heavy 2" eyepiece on my refractor. Will the PrimaLuceLab Counterweight PLUS 1Kg help?

    Absolutely. A heavy 2" eyepiece makes a refractor tail-heavy, causing it to tip upwards when the altitude clutch is unlocked. By placing the 1 Kg counterweight on the dovetail bar towards the front of the telescope (near the objective lens), you can perfectly balance the tube for safer and more stable visual observing.

  • Weight 1 Kg
    System PrimaLuceLab PLUS

    • Counterweight PLUS 1Kg

      × 1

    • Stacking Screws

      × 1 Set

  • No manual or software is available for this product.

  • PrimaLuceLab 1-Year Warranty