Canon Macro Auto Ring lens mount_Olympus Pen 8 frames of 6x9

8 frames of 6x9

so you'll want to keep it well maintained to preserve its condition

Accepts any Nikon F-mount lens

The Tamron Adaptall 24mm f2

But it's a full-frame fisheye

Canon Macro Auto Ring lens mount_Olympus Pen 8 frames of 6x9The Canon Macro Auto Ring is a useful macro accessory which provides automatic stop down features to FD lenses mounted on non automatic bellows, either in forward or reverse. Clip it to the lensmount, attach a double cable release, and enjoy not having to stop down your lens by hand. In excellent condition, with original box and manual. Lens, camera, bellows and cable release are sold separately.