Whether you're shooting digitally or on film, Fotodiox offers the world's largest selection of lens adapters. Certain prime lens just can't be replaced, and you save the cost of purchase on new lenses. Mix camera/lens platforms or reinvigorate vintage glass; Fotodiox has hundreds of ways to mount lenses onto your DSLR or SLR camera. Our adapters deliver infinity focus, manual aperture control, and a sturdy build for lasting quality.

• Add autofocus to Leica M Manual Lenses: The Fotodiox Pro PRONTO adapter brings autofocus to your Leica M lenses. It is recommended that the lens be set to infinity focus, allowing autofocus within the entire focusing range of the lens. Half-press the shutter button to activate AF and the PRONTO will focus your lens. Performance is optimal with 50mm and wider lenses. Telephotos require coarse manual focusing before use of the adapter for fine tuning via autofocus.
• Improve Close Focus Ability; Lightweight & Compact: Improve close focusing with the Fotodiox Pro PRONTO adapter by attaching your lens and setting to the closest focus distance possible. This setup will allow you to use the PRONTO adapter as a 5mm extension tube with autofocus capabilities that will significantly shorten the minimum focus distance of your lens. The wider the lens, the stronger the effect will be.
• Further Adapt Other Lens Mounts to Expand Lens Capability: The PRONTO adapter has a Leica M-mount, but the options don’t stop there. With the use of additional adapters you are able to adapt nearly any lens to Leica M, attach to the PRONTO adapter and enable them to be used with autofocus. Not all adapters will work due to size limitations imposed by the motor housing of the PRONTO adapter. Click here to see a list of compatible adapters for the PRONTO adapter.
• Function Button; PDAF Compatible; AF-S, AF-C & Stabilization: The button on the side of the Pronto is a function button which allows the user to enter various focus modes as well as setting the focal length and maximum aperture of the lens used on the adapter for optimum compatibility. Compatible with the Phase Detection autofocus (PDAF) systes. This adapter will support both AF-S and AF-C focusing modes, face detection and up to 5-axis stabilization on supported cameras.
• Limited 2-Year Manufacturer Warranty: Fotodiox Pro adapters feature all-metal, no plastic construction to create a secure connection between your glass and camera that will not degrade over time, keeping the lens-camera connection secure with every use. We use chrome plated brass mounts for enhanced durability and reliability. All Fotodiox products are backed by our 24-month Fotodiox Manufacturer Warranty.
• Add autofocus to Leica M Manual Lenses: The Fotodiox Pro PRONTO adapter brings autofocus to your Leica M lenses. It is recommended that the lens be set to infinity focus, allowing autofocus within the entire focusing range of the lens. Half-press the shutter button to activate AF and the PRONTO will focus your lens. Performance is optimal with 50mm and wider lenses. Telephotos require coarse manual focusing before use of the adapter for fine tuning via autofocus.
• Improve Close Focus Ability; Lightweight & Compact: Improve close focusing with the Fotodiox Pro PRONTO adapter by attaching your lens and setting to the closest focus distance possible. This setup will allow you to use the PRONTO adapter as a 5mm extension tube with autofocus capabilities that will significantly shorten the minimum focus distance of your lens. The wider the lens, the stronger the effect will be.
• Further Adapt Other Lens Mounts to Expand Lens Capability: The PRONTO adapter has a Leica M-mount, but the options don’t stop there. With the use of additional adapters you are able to adapt nearly any lens to Leica M, attach to the PRONTO adapter and enable them to be used with autofocus. Not all adapters will work due to size limitations imposed by the motor housing of the PRONTO adapter. Click here to see a list of compatible adapters for the PRONTO adapter.
• Function Button; PDAF Compatible; AF-S, AF-C & Stabilization: The button on the side of the Pronto is a function button which allows the user to enter various focus modes as well as setting the focal length and maximum aperture of the lens used on the adapter for optimum compatibility. Compatible with the Phase Detection autofocus (PDAF) systes. This adapter will support both AF-S and AF-C focusing modes, face detection and up to 5-axis stabilization on supported cameras.
• Limited 2-Year Manufacturer Warranty: Fotodiox Pro adapters feature all-metal, no plastic construction to create a secure connection between your glass and camera that will not degrade over time, keeping the lens-camera connection secure with every use. We use chrome plated brass mounts for enhanced durability and reliability. All Fotodiox products are backed by our 24-month Fotodiox Manufacturer Warranty.