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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 Losmandy Plate 350mm PLUS

PrimaLuceLab Losmandy Plate 350mm PLUS

by PrimaLuceLab
SKU PLL-PLLLOS350P
$89.00 - $89.00
$89.00
$89.00 - $89.00
$89.00
Price Match Policy!
  • 350mm Losmandy-Style Dovetail Plate
  • Part of the Modular PrimaLuceLab PLUS System
  • CNC Machined from a Single Aluminum Block
  • Multiple Threaded Holes and Slots for Accessories
  • Designed for Medium-Sized Telescopes
2 in stock
Qualifies for FREE Shipping in CONUS on orders over $350.
  • Description
  • FAQ
  • Specifications
  • In the Box
  • Warranty

  • PrimaLuceLab Losmandy Plate 350mm PLUS

    The PrimaLuceLab Losmandy Plate 350mm PLUS is a CNC-machined aluminum dovetail bar engineered to securely mount medium-sized telescopes on Losmandy-compatible mounts. This 350mm plate provides the structural backbone for your optical tube, integrating it into the rigid and highly adaptable PLUS ecosystem for astrophotography.

    The 350mm CNC-Machined Losmandy Plate

    Machined from a single block of aluminum, this 350mm Losmandy-style plate offers exceptional rigidity for instruments like refractors up to 120mm or Newtonian reflectors up to 250mm in diameter. It provides a secure connection to robust mounts, such as the Sky-Watcher AZ-EQ6 or EQ8, preventing flexure that can ruin long exposures.

    PLUS System Integration: A Rigid, Modular Mounting Platform

    This plate is a core component of the PrimaLuceLab Universal System (PLUS). The extensive pattern of threaded holes and slots allows you to directly attach other PLUS elements like support rings, guide rings, and clamps without drilling additional holes. This modularity creates a mechanically stiff assembly, essential for precise tracking and guiding.

    • Enhanced Rigidity: Use a second PLUS plate above your telescope's tube rings to create a rigid cage structure, minimizing tube flexure and providing a stable platform for guide scopes or control units like the PrimaLuceLab EAGLE.
    • Side-by-Side Mounting: Combine this 350mm plate with two PLUS dovetail clamps to build a custom side-by-side system, allowing you to mount two telescopes in parallel on a single mount head.
    • Universal Compatibility: A series of central slots ensures you can attach support rings and accessories from other manufacturers, offering flexibility beyond the PLUS ecosystem.

    PrimaLuceLab PLUS vs. Standard Dovetail Plates: Rigidity and Modularity

    While a standard Losmandy plate provides a basic connection, the PrimaLuceLab PLUS system elevates it to an integrated mechanical platform. Unlike generic plates with only a central slot, the PLUS plate's comprehensive hole pattern allows for direct, secure, multi-point connections for all your accessories.

    This eliminates the instability of stacked adapters and single-bolt connections. The ability to build a complete, interconnected system of rings, plates, and clamps results in a measurably more rigid imaging train, which is a critical advantage for autoguiding and achieving sharp, round stars.

  • What telescopes are a good match for the PrimaLuceLab Losmandy Plate 350mm PLUS?

    The PrimaLuceLab Losmandy Plate 350mm PLUS is ideal for medium-sized telescopes. This typically includes refractors up to 120mm in aperture and Newtonian reflectors up to 250mm. Its length provides ample support and mounting points for tube rings spaced appropriately for these instruments.

    How does the PLUS system on this 350mm plate improve my setup's rigidity?

    The PLUS system improves rigidity by allowing you to create a solid, interconnected mechanical structure. Instead of attaching accessories with single screws, you can use multiple connection points. For maximum stiffness, you can add a second PLUS plate on top of your tube rings, creating a cage-like structure that virtually eliminates tube flexure.

    Can I mount non-PrimaLuceLab accessories on the Losmandy Plate 350mm PLUS?

    Yes. The Losmandy Plate 350mm PLUS includes a series of central slots specifically designed for universal compatibility. These slots allow you to attach support rings or other accessories from different brands using standard screws, ensuring you can integrate the plate into your existing setup.

    What do I need to create a side-by-side setup with the Losmandy Plate 350mm PLUS?

    To build a side-by-side system, you would use the Losmandy Plate 350mm PLUS as the base that attaches to your mount. On top of this plate, you would install two PrimaLuceLab PLUS dovetail clamps. Each clamp would then hold a telescope equipped with its own Vixen or Losmandy-style dovetail bar.

    I have a 250mm Newtonian and an AZ-EQ6 mount. Is the 350mm Losmandy plate a good choice?

    Yes, the 350mm Losmandy plate is an excellent choice for a 250mm Newtonian on an AZ-EQ6 mount. Its length is well-suited to the tube ring spacing required for a telescope of this size, providing a stable, flex-free connection to the Losmandy-compatible saddle on the mount.

    How can I attach an 80mm guide scope using the 350mm Losmandy PLUS plate?

    You have several options. You can attach PLUS guide rings directly to the threaded holes on the 350mm plate if you are building a side-by-side system. More commonly, you would attach a second, smaller PLUS plate on top of your main telescope's rings and then mount the guide rings to that top plate. This provides better balance and positioning flexibility for the guide scope.

  • Dovetail Style Losmandy
    Length 350mm
    System PrimaLuceLab PLUS

    • PrimaLuceLab Losmandy Plate 350mm PLUS

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  • PrimaLuceLab 1-Year Warranty