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
Canon Bayonet Mount Lens Canon Bayonet Mount Hood Canon Bayonet Mount Lens Hood Canon R Mount Bayonet Bayonet Adapter For Canon Eos Bayonet To Canon Ef Adapter Canon Bayonet Ef Adapter Canon Bayonet Lens Adapter 1 3 Bayonet Lens Adapter Sony Adapter For Minolta Lenses
Celestron Canon T Ring Adapter Ef Mount Fisheye Lens Sony E Mount 24-70 F4 Canon Mount Adapter Ef-eos Rp Adapter Lens For Macro Eos M100 Lens Adapter Mamiya Rz Lens To 645 Adapter Sony Ipod Speaker Adapter Sony Oem Av Adapter Sony E Mount Tamron 10-24