Manfrotto 410 Extended Arca-Swiss Adapter

The Hejnar Photo M410Long is a precision‑machined extended adapter plate designed to fix the rotational offset of the standard Manfrotto 410 Junior Geared Head. By centering the Arca-Swiss clamp directly over the head's panning axis, this plate restores the precision required for professional panoramic and macro photography.

Quick Overview

• Model: M410Long (Extended Version)
• Custom designed to align camera/lens mount axis with the head's panning base
• Eliminates rotational offset—essential for critical panoramic and macro work
• Allows Arca-type clamps to be positioned in 90-degree increments
• Note: Clamp cannot be oriented with the knob on the bubble level side
• Supports dual mounting: 2 or 3 screw configurations depending on clamp orientation
• Precision CNC-machined from 6061-T6 aluminum with black anodizing
• Made in the USA

Product Description

Standard Manfrotto 410 arrangements often place the camera mount off-center from the panning axis, which is a major drawback for precision photography. The Hejnar Photo M410Long extended conversion plate solves this by ensuring that when you pan the head, both the head and your camera rotate around the exact same axis.

This extended plate is a "killer" upgrade that makes the 410 head useful again for critical macro and panoramic work. While this listing is for the adapter plate only (clamp required separately), it provides a rock-solid foundation that accepts any modular Arca-style clamp. The plate is engineered for versatility, allowing 90-degree rotational steps to suit your preferred knob orientation.

Simple 2-Step Installation

1. Remove the factory lock-down lever using the provided 3mm hex wrench.
2. Connect the M410Long plate to the geared head using the provided 1/4-20 and 10-32 screws.

Installation Tip: For a permanent, secure fit, the use of a removable thread locker (like blue Loctite) on mounting screws is recommended.