6 Inch Arca-Swiss Telephoto Lens Support Kit with F61b Quick-Adjust Clamp

The Hejnar Photo 6-Inch Quick Height Adjustment Lens Support Package is a high-performance stabilization system engineered for photographers who demand speed and precision in the field. This professional kit bundles our versatile 6-inch multi-purpose rail (Model G010-60) with the LLSB vertical support bracket and a dedicated 1.50-inch quick-release clamp (Model F61b). By mounting the support bracket within a clamp rather than a static bolt, you can adapt to different lens barrel diameters in seconds without tools. Proudly CNC-machined in the USA, it provides the rock-solid foundation required for telephoto zoom and focus stacking workflows.

SAE Technical Specifications

• Bundle Components: One (1) G010-60 6-inch Rail, one (1) LLSB Bracket, and one (1) F61b 1.50" Clamp.
• Rail Length: 6.00 inches (152mm).
• Rail Thickness: 0.50 inch (1/2").
• Clamp Integration: F61b 1.50" clamp is secured to the rail end via a heavy-duty single-screw mount.
• Anti-Twist Security: Rail end features a 1/4-20 tapped hole and two 5mm dowel pin openings to prevent clamp rotation.
• Material Composition: Precision CNC-machined solid 6061-T6 Aircraft-Grade Aluminum.
• Finish: Black hard-coat anodized layer for lifelong abrasion and corrosion resistance.
• Manufacturing Origin: Designed, machined, and quality-tested in the USA.

Quick Overview & Key Features

• Rapid Tool-Free Height Adjustment: The LLSB vertical bracket slides natively inside the F61b clamp; simply turn the knob to adjust for different lenses instantly.
• Dramatically Improves Stability: Neutralizes mirror slap, shutter shake, and wind-induced micro-vibrations by providing a rigid secondary point of contact at the front of the lens.
• Protects Your Camera Mount: Disperses heavy optical weight across the rail, removing cantilever strain from the bayonet mount of your mirrorless or DSLR camera.
• Universal Arca-Swiss Compatibility: The double-dovetail rail profile interfaces directly with ball heads and gimbals from RRS, Kirk, Wimberley, and Markins.
• Advanced Safety Design: Includes M3 safety stop screws to prevent equipment free-fall when the tripod clamp is not fully closed.

Detailed Product Description

The Hejnar Photo 6-Inch Lens Support Package with Quick Height Adjustment addresses the inherent physical weakness of large telephoto configurations: focal movement and physical cantilever sag. When a heavy lens is secured to a tripod solely by its central collar foot, the unsupported weight at the front acts like a tuning fork, magnifying vibrations from environmental factors like wind or physical shutter actuation. This kit stabilizes the setup by creating a solid, multi-point platform.

At the heart of this system is the F61b 1.50-inch quick-release clamp mounted to the vertical face of the G010-60 rail. Unlike static bolt-on supports, this design allows the LLSB support bracket to slide into the clamp jaws, enabling you to dial in the perfect upward tension against your lens barrel in seconds. This is particularly useful for photographers who alternate between different prime or zoom lenses during a single session.

The rail end features a 1/4-20 tapped hole paired with dual dowel pin openings. This specialized configuration allows the F61b clamp to be mechanically locked against rotation, ensuring it remains square to the lens even under heavy side-loads. Machined from solid blocks of 6061-T6 aluminum and protected by a hard-coat anodize, this USA-crafted system represents the unyielding standard of professional equipment support.