icon/midnight/@searchCreated with Sketch.

Phase One Auto Extension Ring No. 3

Currently out of stock.

These are all gone - but not for long.

Get a notification when the Phase One Auto Extension Ring No. 3 is ready to buy again. MPB buys and sells hundreds of items every day, so this one will be back very soon.

Back to all Teleconverters & extension tubes

Model Overview

The Phase One Auto Extension Ring No. 3 is a precision-engineered accessory designed to enhance your macro photography capabilities. This versatile tool seamlessly integrates with your compatible lens, providing a substantial extension for capturing intricate details. With its intelligent electronic contacts, the ring preserves essential camera functions like auto-aperture, ensuring a smooth and intuitive workflow.

Peace of mind

Every year, we recirculate more than 500,000 used cameras, lenses and accessories. Everything comes with a free twelve-month warranty.

We’re rated Excellent on Trustpilot.

Two photographers; on the left, a photographer is looking through the viewfinder, and on the right, the photographer is smiling and looking at the camera in their hands.

Plastic free shipping

All packaging is plastic free & our platform uses renewable electricity.

MPB and sustainability

Trusted by 1,000,000

Over the past ten years, we’ve served more than 1,000,000 visual storytellers around the world.

First-class customer service

Our award-winning team in Berlin is here to help.

Help Centre