![background image](http://html1.mh-extra.com/html/vello/macrofier/macrofier_user-manual_4034825015.webp)
15
1. After removing the front
and back rings, mount the
Vello EXT-CEM extension
tubes to the body ring by
aligning the threaded ends
and screwing them together
until secure.
2. Mount the lens ring to the
EXT-CEM extension tubes
by aligning the extension
tube’s threaded ends and
screwing them together
until secure.