kfconcept
There are two types of FD mounts
FD/FL Breech-Mount (with a silver ring, you need to rotate the silver ring when attachment and removal), breech-lock mounts are identified by the silver ring
New-FD Bayonet Mount, bayonet mounts are identified by a red dot next to the lens release button
Here are the steps to install breech-mount version
Operating the adapter
Camera Lens Mounts Explained Different Camera Lens Mounts Sony Camera Lens Mounts Canon Camera Lens Mounts Lens To Camera Adapters Viltrox Ef E Lens Mount Adapter Ring Digital Camera Lens Mounts List Of Camera Lens Mounts Movie Camera Lens Mounts Olympus Camera Lens Mounts
Leica R To M Adapter Canon 600d Lens Mount Canon M50 Lens Mount Adapter Iphone 13 Lens Adapter Nikon 14 24 Filter Adapter 28mm F2 Canon Fd Mount Xf Mount Wide Angle Lens Yongnuo's Nikon F-mount 50mm F 1.8 Atheros Ar9285 Wireless Network Adapter Sony Vaio Konica Hexanon Sony Nex Adapter