With the 2 intermediate rings in the Caruba Extension Tube set Fujifilm Chrome (version II) you can make a subject bigger and you can focus up close. This makes them suitable for close ups and macro photography. This set consists of 2 intermediate rings of 11mm and 16mm that can be used on a Fujifilm X Mount lens. The intermediate rings can also be attached to each other. Autofocus, light metering and image stabilization in the lens you confirm will continue to work.