1. PROFESSIONAL DESIGN: This lens tripod mount ring is designed for professional 50-400mm F/4.5‑6.3 Di III VC professional artistic lenses, which ensures stable and balanced shooting.
2. EASY TO ASSEMBLE - At the bottom of the lens ring is an 80mm quick release plate with 1/4" and 3/8" screw holes that is compatible with Arca tripod ball heads, panoramic heads and clamps.
3. FIXED AND BALANCED: The tripod mounting ring is mounted on the tripod, helps you fix and balance the weight or long lenses hanging in front of your camera.
4. EXCELLENT WORKMANSHIP:The tripod collar mounting ring is made of an aircraft grade aluminum alloy material, CNC fine machining, which makes the lens ring more durable and erosion resistant.
5. PRECAUTIONS: The surface of is protected, it will not wear the surface of the lens after installing it properly; There should be no stickers on the mounting position of the lens surface; if any, please remove them; otherwise, it will affect the normal installation; After installation, it can be rotated freely like the original tripod ring.

Specification:
Item Type: Tripod Mount Ring
Material: Aluminum Alloy
Hole Type: 1/4" Thread, 3/8" Thread
Applicable lens: for 50-400mm F/4.5-6.3 Di III VC

Package includes:
1 x Tripod Mount Ring
1 x L-shaped hex key