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
Pentax K Bayonet Mount Lenses Nikon F Bayonet Mount Cameras Leica Bayonet Mount Lenses Sony E Mount Starter Lens Female Nikon Bayonet F Mount Nikon Bayonet Mount Lenses Nikon F Bayonet Mount Vs F Mount Pentax Kaf2 Bayonet Mount Lenses Sony E Mount F.95 Sony E Mount F.98
Canon Pl Mount Lenses K Mount Zoom Lens Leica L39 To M Mount Diana+ Lens Adaptor Canon Mount Canon 80d T Ring Adapter Action Camera Lens Adapter Best Adapted Vintage Nikon Lens S Mount Lens On Mirrorless Eos Tamron Af 10-24mm For Nikon Mount Sony Alpha A6000 M42 Adapter