2.375 Inch Arca-Swiss Conversion Clamp for Manfrotto 054, 055, 057, and MHXPRO Series

The Hejnar Photo 2.375-Inch Manfrotto Conversion Clamp is a specialized, compact upgrade designed to swap out the proprietary quick-release platforms on Manfrotto magnesium ball heads for the industry-standard Arca-Swiss system. This conversion kit eliminates the bottleneck of proprietary Manfrotto plates, enabling seamless integration with high-end Arca-type plates and L-brackets from RRS, Kirk, and Wimberley. Proudly CNC-machined in the USA from solid 6061-T6 aluminum, it provides a streamlined and rock-solid fit that updates your tripod head's utility without adding unnecessary weight.

System Compatibility

This conversion clamp is engineered for a perfect fit on the following Manfrotto ball head models:

• Magnesium Ball Heads: 054, 055, and 057 Series (specifically models equipped with Q2 and Q5 quick release).
• Compact/Mid-Range Series: 494, 496, and 498 Ball Heads.
• XPRO Series: MHXPRO-BHQ2 Ball Heads.

Simple 3-Step Installation

1. Remove Platform: Unscrew and remove the factory Manfrotto quick-release platform from the ball head mounting post.
2. Align Components: Line up the precision-machined slots on the back of the Hejnar clamp with the anti-twist island on your Manfrotto post.
3. Secure Setup: Bolt the new 2.375" Arca-Swiss compatible clamp into place using your original Manfrotto center screw.

Quick Overview & Key Features

• Streamlined 2.375" Footprint: Highly compact jaw size keeps the weight of your travel or field rig down while providing a secure Arca-Swiss interface.
• Anti-Twist Recessed Profile: Machined with matching rear registration slots that snap directly onto the Manfrotto stem island, preventing dangerous rotational play under heavy side loads.
• Original Hardware Integration: Intentionally designed to reuse the existing factory Manfrotto center screw for a clean mechanical fit.
• Universal Arca Compatibility: Fits all standard quick-release plates, nodal slides, and L-brackets from standard photographic brands.
• Professional Black Anodized Finish: Treated with a hard-coat layer to resist abrasion, corrosion, and severe outdoor weather conditions.

Comprehensive Product Description

The Hejnar Photo 2.375-Inch Manfrotto Conversion Clamp is the definitive answer for photographers who trust the mechanical build quality of their Manfrotto ball heads but require the modern freedom of a unified Arca-Swiss ecosystem. Proprietary quick-release platforms can often act as a workflow bottleneck; by installing this conversion plate, you gain a standard interface across your entire camera gear catalog.

What distinguishes this 2.375" version is its efficiency and compact layout. It replaces bulky factory components without adding excessive weight or mass to your ball head. The precision-milled alignment slots on the underside drop over the existing Manfrotto indexing post. Once tightened down, the clamp becomes an unyielding extension of the ball head itself, eliminating the twisting issues common with stacked adapter plates.

Designed, machined, and meticulously tested in the USA, this component provides the structural integrity and professional reliability that define Hejnar Photo hardware. It is a cost-effective and highly secure way to modernize your professional camera support setup without the need to purchase an expensive new tripod assembly.