The PRONTO Autofocus Adapter from FotodioX is designed to allow Leica M-mount lenses that be used on select Nikon Z-mount mirrorless cameras. This adapter can also improve near-range portraiture by allowing the lens to focus closer than its normal minimum focus distance. By placing space between the camera body and lens, focusing distance is shortened and the effect of magnifying your subject is created. Additionally, the adapter can be combined with separately available lens to Leica M-mount camera adapters to enable use of other lens types.

For focus control, this adapter features a built-in helicoid that extends and retracts a compatible lens based on the connected camera's contrast detection AF-S or AF-C autofocus. Designed to support focusing to infinity, the adapter is constructed from brass and aluminum alloy and utilizes a brass lens mounting ring to provide a durable, yet lightweight camera-to-lens connection.