This KIPON Macro Lens Mount Adapter for M42-Mount Lens to Leica L-Mount Camera is specifically designed to support macro mode. Thanks to a built-in helicoid, it can be turned to further focus the lens beyond its minimum focus distance, effectively increasing magnification. Please note that once the helicoid is adjusted out of its original position, infinity focus will no longer be available. When the adapter is in its original position, the infinity focus function will continue to work as usual.