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
Lens Filter For Film Look Cloudy Lens Filter Film Photography Lens Filter Stock In Film Uv Film Filter For 50mm Lens Tunfsten Film To Daylight Lens Filter Welding Filter Lens Shade 13 Lens Mounts Explained Film Riots Safety Film Solar Filter Solar Eclipse Film Filter Sun Filter Window Film
Kolari Vision Thin Filter Legacy Lens Upgrade Best Neutral Density Lens Filter Fuji X Mount Rear Lens Cap Sony Vhs Cassette Adapter Ttartisan 50mm 0.95 Sony E Mount Viltrox Ef-r2 Lens Mount Adapter Canon Pixma Ip100 Wireless Adapter Letus Extreme 35mm Lens Adapter Mamiya Nc1000 Lens Mount Is Sony A6300 E-mount Or A-moun T