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 Mount Lenses Nikon F Bayonet Mount Lenses Leica Bayonet Mount Lenses Pentax Bayonet Mount Lens Nikon Bayonet Mount Lenses Pentax Bayonet To Eos Adapter Pentax Kaf2 Bayonet Mount Lenses Pentax Kaf2 Bayonet Stainless Steel Mount Sears Kr Mount Converter To Pentax Bayonet Sony Alpha A77 A Mount
Sigma Trio Sony E Mount Tamron 18 270 Canon Mount Canon 5d Mark Ii Sd Card Adapter Sony E Mount Teleconverters Tamaha Canon 14mm Pl Mount Panasonic G9 Canon Adapter Om Bayonet Lens Adapter F Mount 40mm Lens Mikaton Sony A Adapter Doe Sony Fe Fit E Mount