8 Inch Arca-Swiss Lens Support Kit with G013-80 Rail & F61b Quick-Adjust Clamp

The Hejnar Photo 8-Inch Quick Height Adjustment Lens Support Package is a high-performance stabilization system engineered for photographers who demand speed and precision. This professional kit bundles our specialized 8-inch multi-purpose rail (Model G013-80) 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 super-telephoto and focus stacking workflows.

SAE Technical Specifications

• Bundle Components: One (1) G013-80 8-inch Rail, one (1) LLSB Bracket, and one (1) F61b 1.50" Clamp.
• Anti-Twist Security: Standard 5mm dowel pin integrated into the rail end to prevent clamp rotation.
• Clamp Integration: F61b clamp is secured to the rail end via a heavy-duty single-screw mount.
• Rail Profile: Standard Arca-Swiss double-dovetail geometry.
• 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 vertical bracket slides natively inside the F61b clamp; simply turn the knob to adjust for different lenses or to reverse your lens hood for storage.
• Snap-Fit Dowel Pin Alignment: Prevents the F61b clamp from accidental rotation under the torque of heavy telephoto setups, ensuring perfectly square alignment.
• Dramatically Improves Stability: Neutralizes mirror slap, shutter shake, and wind-induced micro-vibrations by providing a rigid secondary point of contact.
• 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 G013-80 base interfaces directly with ball heads and gimbals from RRS, Kirk, Wimberley, and Markins.

Detailed Product Description

The Hejnar Photo 8-Inch Lens Support Package with Quick Height Adjustment addresses a common frustration for field photographers: the need to constantly recalibrate support brackets when switching between lenses. While standard static supports are secure, they often require hex tools to change height. This package solves that by implementing a clamp-based vertical drive.

At the heart of this system is the G013-80 8-inch rail, specifically designed to accept our F61b 1.50-inch clamp on its vertical face. By utilizing a 5mm dowel pin in addition to the primary mounting screw, the clamp is mechanically locked against rotation. The LLSB support bracket then slides into the clamp jaws, allowing you to dial in the perfect upward tension against your lens barrel in seconds. This is particularly useful for wildlife and sports photographers who may alternate between a 70-200mm and a 100-400mm lens during a single session.

Machined from top-tier 6061-T6 aluminum and protected by a hard-coat anodize, this USA-crafted system is built for professional longevity. It eliminates the flex and vibration inherent in single-point tripod collar mounts, protecting your expensive glass while ensuring every shot is as sharp as your optics allow.