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
Fotodiox Pro Lens Mount Adapter Canon Fd Canon Fd To Nex Adapter Ttartisan 50mm F/0.95 Lens For Leica M-mount Canon Fd Adapter Nex Fotodiox Adapter Canon Fd Nex Fotodiox Adapters For Fd Canon Lens Fotodiox Excell 1 Canon Fd Lens Adapter Fotodiox Pro Pronto Adapter Fd Lens Fotodiox Pro Adapter Nikon Nex Fd Sony Nex Adapter
Fuji X100 56mm Lens Filter Adapter Canon M50 Ef Mount Wide Angle Adapter Canon Rokinon 12mm F 2.0 Sony E Mount Canon Yh19x6.7 Kts On Eos Adapter Leica Sl Mount For Red Nikon Mount Reflex Lens Best Nikon T Adapter Multistalk Adapter For Sony Xm Adapter For Sony Dsa