Features: Achieve infinite- focus- and manual control with the T2 adapter ring for EOS-RF and for Nikon-Z cameras. Made of durable metal alloy-, this adapter ring allows you to manually adjust lens focus- and aperture- for optimal-results. Designed for EOS-RF R RP R5 R6 and for Nikon-Z5 Z6 Z7 Z9 Z30 cameras, as well as TO lenses (telephoto, super telephoto, mirror, and telescope). Features: Manual focusing, manual dimming, infinite- focusing. The T2 port is composed- of two rings inside and outside, which can rotate with each other- to adjust the lens and body The angle between. M42 and T/T2 ports are not interchangeable and require the use of adapter ringsCan be transferred. Specifications: Item:T2 Metal Telescope Adapter Ring Model For: T2 EOS RF/ T2 for Nikon-Z EOS RF Suitable for EOS RF RP R5 R6 and other R port micro single camera Material: Metal Alloy- Features: Manual focusing, manual dimming, infinite- focusing. T2 forNikon-Z Suitable for body: forNikon-Z5 Z6 Z7 Z9 Z30 and other Z-port micro single camera Note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment. Package includes: 1PC Telescope Adapter Ring