8Sinn 15 mm Baseplate Plus Riser Plate I Plus 8Sinn 5-Inch Arri Dovetail Plate

This three-piece kit from 8Sinn combines a precision 15 mm rod baseplate, the Riser Plate I, and a 5-inch Arri dovetail plate to achieve the industry-standard 85 mm optical center. Machined from high-strength aluminum with integrated rubber pads, it delivers a rigid yet lightweight platform for rods, cages, and tripod heads—ensuring secure, scratch-free mounting.

Featuring dual 32 mm Arri rosettes, dovetail guide rails, multiple 1/4″ and 3/8″ threaded mounting points, plus a quick-release release pin with stopper screw, this system provides rapid setup, precise balance adjustments, and ample expandability—ideal for both handheld rigs and tripod-mounted configurations.

Key Features

• Baseplate: 2 × 32 mm Arri rosettes; 15 mm rod compatibility; 3 ergonomic thumbscrews; 6 × 1/4″ threaded openings
• Riser Plate I: 1 × 1/4″ and 1 × 3/8″ mounting screws; rubber-padded surface
• Arri Dovetail Plate: 5-inch (127 mm) length; release pin; stopper screw; Helicoil 1/4″ & 3/8″ threads
• Dovetail Guide Rails: Bottom-mounted for tripod plate alignment

Technical Specifications

• Weight: 0.68 lbs (0.31 kg)
• Material: High-strength aluminum alloy
• Rod Size: 15 mm standard
• Dovetail Length: 5-inch (127 mm)
• Threads: Baseplate – 6 × 1/4″; Riser Plate I – 1 × 1/4″ & 1 × 3/8″; Dovetail – Helicoil 1/4″ & 3/8″

What's Included

• 1 × 8Sinn 15 mm Baseplate
• 1 × 8Sinn Riser Plate I
• 1 × 8Sinn 5-Inch Arri Dovetail Plate