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
If your camera indicated "lens is not properly installed", please modify the camera menu settings. Usually called the "release the shutter the lens is not installed", you can modify the settings to allow. Specifically refer to the camera manual.Following are some examples:
Olympus Om D Lens Adapter Canon Bayonet Lens Adapter 1 3 Bayonet Lens Adapter Om 4 3 Lens Adapter Om D Lens Adapter Om-2 To Om E Lens Adapter Screw To Bayonet Lens Adapter 1 3 Bayonet Mount Lens C Y Bayonet Lens Mount Sony Multi Terminal Right Angle Adapter
Sony Action Cam Lens Filter Minolta Maxxum Lens Mount Canon Macro Lens E Mount Sigma 24-70 Mm F2.8 Lens Canon Mount 1.4 Adapter Canon Vs 1.4 Adapter Sigma Canon To Minolta Alpha Adapter Fa-dc58b Filter Adapter For Canon G12 Pentax K100d Super Lens Mount Turn Light Lens Mount Adapter For Nikon Body