iShoot Metal Tripod Mount Ring for Canon RF 70-200mm f/2.8L - Arca QR

In this review the iShoot Metal Tripod Mount Ring IS-RF720 is evaluated as a specialist accessory for photographers who own the Canon RF 70-200mm f/2.8L IS USM lens. The bottom line: this ring is for users who need a lightweight, precisely machined collar with an integrated 70mm Arca-Swiss style quick release plate and genuine E(III) standard fit; it gives a solid, camera-ready mounting option that matches the lens geometry and keeps handling tidy during long shoots.

Key Features

• Tailor-made fit: The ring is designed specifically for the Canon RF 70-200mm f/2.8L IS USM and fits the lens inner diameter of about 81.5 mm, reducing the risk of slop or misalignment.
• Original E(III) design: The split collar follows the lens maker's E(III) standard and uses a grooved inner wall with 3M protective film to reduce wear on the lens barrel.
• Arca-type quick release: A 70 mm Arca-fit dovetail is built into the bottom so you can clamp the lens directly to compatible ball heads and panoramic heads without an extra plate.
• Dual screw mounting: The base includes reserved 1/4" and 3/8" screw holes plus a stainless anti-slip screw to secure the lens to a tripod or support for stable shooting.
• Lightweight aviation aluminum: CNC-machined, hollowed-out construction keeps the net weight near 165 g while remaining rigid and corrosion resistant.

Who It's For

This collar is aimed at photographers who own the Canon RF 70-200mm f/2.8L IS USM and want a dedicated tripod mount that matches the lens geometry and Arca-Swiss workflow. It is especially useful for wildlife, sports, and event shooters who need quick transitions between tripod and handheld work while keeping the lens balanced on gimbal or ball-head setups.

It is not for users who want a universal collar for multiple lenses or who prefer collars with built-in foot handles; the IS-RF720 is purpose-built for a single lens model and will not fit other lenses. Those needing a heavier-duty or motorized collar should look elsewhere.

Pros & Cons

Pros

• Precise E(III) split design and protective 3M film protect the lens finish while providing reliable locking.
• Integrated 70 mm Arca-fit dovetail plate saves time and reduces the need for separate quick-release plates.
• CNC-machined aviation aluminum provides a strong but lightweight solution at about 165 g net weight.

Cons

• Fit is strictly limited to the Canon RF 70-200mm f/2.8L IS USM and will not accommodate other lenses.
• The collar does not include additional handling features like an extended foot or rotating foot adapter for some tripod heads.

Specifications

Model	IS-RF720
Compatible Lens	Canon RF 70-200mm f/2.8L IS USM
Inner Diameter	About 81.5 mm
Width	About 13.5 mm
Net Weight	About 165 g
Base Plate	70 mm Arca-Swiss fit dovetail (39 mm standard)
Material	Aviation aluminum, CNC machined

Our Verdict

The iShoot IS-RF720 tripod mount ring is a focused, well-made accessory for owners of the Canon RF 70-200mm f/2.8L IS USM who want a compact Arca-compatible solution. Its precise E(III) fit, protective inner film, and built-in 70 mm Arca dovetail make it a good value for photographers who work with Arca-style heads and need a lightweight, durable collar that preserves lens balance and handling.

Frequently Asked Questions

Will this collar fit other telephoto lenses?
The collar is tailor-made for the Canon RF 70-200mm f/2.8L IS USM and is not intended for use with other lenses due to its specific inner diameter and width.

Does the base work with common Arca heads?
Yes, the dovetail is a 70 mm long Arca-fit with a 39 mm Arca-Swiss standard profile compatible with many RRS and Arca-style ball heads and clamps.

Can the collar be secured directly to a tripod?
The bottom reserves 1/4" and 3/8" screw holes and includes a stainless anti-slip screw so the lens can be fixed directly to tripod plates or supports.