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William Optics Birding 250mm Duelside Plate (Manfrotto & Arca Swiss Type) - DISCONTINUED
William Optics Birding 250mm Duelside Plate (Manfrotto & Arca Swiss Type) - DISCONTINUED
William Optics Birding 250mm Duelside Plate (Manfrotto & Arca Swiss Type) - DISCONTINUED
William Optics Birding 250mm Duelside Plate (Manfrotto & Arca Swiss Type) - DISCONTINUED
William Optics Birding 250mm Duelside Plate (Manfrotto & Arca Swiss Type) - DISCONTINUED
William Optics Birding 250mm Duelside Plate (Manfrotto & Arca Swiss Type) - DISCONTINUED
William Optics Birding 250mm Duelside Plate (Manfrotto & Arca Swiss Type) - DISCONTINUED
William Optics Birding 250mm Duelside Plate (Manfrotto & Arca Swiss Type) - DISCONTINUED
William Optics Birding 250mm Duelside Plate (Manfrotto & Arca Swiss Type) - DISCONTINUED
William Optics Birding 250mm Duelside Plate (Manfrotto & Arca Swiss Type) - DISCONTINUED
William Optics Birding 250mm Duelside Plate (Manfrotto & Arca Swiss Type) - DISCONTINUED
William Optics Birding 250mm Duelside Plate (Manfrotto & Arca Swiss Type) - DISCONTINUED

William Optics Birding 250mm Duelside Plate (Manfrotto & Arca Swiss Type) - DISCONTINUED

by William Optics
SKU WO-M-PMA250
Sold out
CA$96.00 - CA$96.00
CA$96.00
CA$96.00 - CA$96.00
CA$96.00
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  • Length: 250 mm
  • Width: 50 mm
  • Dual Dovetail: Manfrotto & Arca-Swiss Compatible
  • Weight: 0.32 kg / 0.71 lbs
  • Ideal for Balancing Long Lenses & Spotting Scopes
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  • Description
  • FAQ
  • Specifications
  • In the Box
  • Warranty

  • William Optics Birding 250mm Duelside Plate (Manfrotto & Arca Swiss Type)

    The William Optics Birding 250mm Duelside Plate provides a rigid, 250 mm long mounting platform designed to bridge the gap between the two most popular tripod head systems. Its standard 50 mm width offers a stable base for heavy camera lenses and spotting scopes, while its lightweight construction of just 0.32 kg (0.71 lbs) adds balancing capability without burdening your field kit.

    The Manfrotto & Arca-Swiss Solution: 1 Plate for 2 Systems

    This plate eliminates the need for stacking adapters by machining both dovetail standards into a single, robust component. One side features the profile for Manfrotto-type clamps, while the opposite side is a universal Arca-Swiss rail. This allows you to seamlessly mount Arca-compatible equipment onto your Manfrotto head, or vice-versa, creating a truly universal connection for your photographic and observation gear.

    A 250mm Platform for Perfect Balance

    The extended 250 mm length is the key to achieving perfect balance with front-heavy or back-heavy setups. By sliding the plate within your tripod clamp, you can precisely position the center of gravity over the head's axis of rotation. This is critical for preventing drift with long telephoto lenses, spotting scopes with digiscoping adapters, or small telescopes, ensuring your target stays centered without constant tension adjustments.

  • What is the primary advantage of the William Optics 250mm Duelside Plate?

    Its core function is to allow cross-compatibility between Manfrotto and Arca-Swiss standard clamps and accessories without needing separate adapters. You can mount a lens with an Arca-Swiss foot onto a Manfrotto video head, for example, by simply choosing which side of the plate to engage.

    Why is a 250mm plate like the WO-M-PMA250 useful for birding?

    Long telephoto lenses and spotting scopes are often front-heavy. The 250 mm length provides ample room to slide the entire assembly forward or backward on the tripod head to find the perfect balance point. This prevents the scope from tipping when you loosen the clamp, allowing for smooth, effortless tracking of moving subjects.

    Will the Arca-Swiss side of the William Optics Duelside Plate fit my Kirk ball head?

    Yes. The Arca-Swiss side is machined to the universal standard for this dovetail type. It is designed to be fully compatible with clamps from major manufacturers like Kirk, Really Right Stuff (RRS), Gitzo, and others that adhere to the Arca-Swiss specification.

    How do I balance a large spotting scope on the 250mm Duelside Plate?

    First, attach the 250mm plate securely to your spotting scope's mounting foot. Then, place the plate into your tripod head's clamp but do not fully tighten it. Slide the scope and plate combination back and forth until it balances perfectly without tipping in either direction. Once balanced, lock the clamp down.

    Is the WO-M-PMA250 plate heavy for a travel setup?

    No, at just 0.32 kg (0.71 lbs), the plate is very lightweight for its size and rigidity. It adds significant balancing functionality without becoming a burden in a backpack or field bag, making it an excellent accessory for photographers and observers who travel.

    Is the William Optics 250mm Duelside Plate still in production?

    No, this particular model (WO-M-PMA250) has been discontinued by the manufacturer. The information provided here is for reference for owners or those looking for it on the used market.

  • Length 250 mm
    Width 50 mm
    Dovetail Type Manfrotto & Arca-Swiss (Dual Sided)
    Weight 0.32 kg / 0.71 lbs

    • William Optics 250mm Duelside Plate

      × 1

  • William Optics 2-Year Warranty