Leica Lens Holder Lets You Use Your Backup Lens for Stabilization
Leica is offering a lens holder accessory for its M system film rangefinders that screws into the tripod mount, allowing you to store your extra lens on the bottom of the camera. The second lens then becomes a handle when inserted into its bayonet mount, helping to provide additional stability when shooting handheld at long exposure times. The setup could even be used as a miniature tripod. Seen at Petapixel.