FOTODIOX LM-FXRF-PRN Autofocus Lens Mount Adapter User Manual
- June 10, 2024
- FotodioX
Table of Contents
LM-FXRF-PRN Autofocus Lens Mount Adapter
User Manual
LM-FXRF-PRN Autofocus Lens Mount Adapter
A Whole New World of Autofocus Lenses Await!
The Fotodiox Pro PRONTO adapter brings autofocus to your Leica M-mount
lenses. For general use, 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 adapter will focus your
lens just like any other AF lens.
Improve macro focusing capabilities 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 4.5mm extension tube with
autofocus capabilities. Doing this will significantly shorten the minimum
focus distance of your lens.
The PRONTO adapter has a Leica M-mount, but the options don’t stop there!
Adapt your favorite lenses to Leica M-mount for use with the PRONTO adapter.*
Installing and using the LM-FXRF-PRN adapter is as simple as installing a
native FUJIFILM X-Series lens on your camera, but it’s worth spending a few
minutes with this short manual to get the most out of your new PRONTO lens
adapter.
Thank you for your support
-Your Fotodiox Team
Scan the QR code above to go to the Fotodiox Knowledgebase for information,
support & firmware updates for this product.
Fotodiox, Inc.
1100 Lakeside Dr.
Gurnee, IL 60031
United States
Phone: 847-201-4623
sales@fotodiox.com
techsupport@fotodiox.com
www.fotodioxpro.com
*PRONTO supports a maximum weight of 600g (1.3lbs).
Feature List
- Add autofocus to your Leica M-mount manual focus lenses
- Improve macro focus capability of all supported lenses.
- Further adapt to other lens mounts to increase your autofocus capability
- Compatible with Fujifilm X-Mount Cameras; Supports AF-S modes
Components
Installing the adapter
- Mount the Leica M Mount Lens to the PRONTO Adapter Mount your lens onto the PRONTO adapter by lining up the red orientation marks for M-Mount lenses, inserting the lens into the front of the PRONTO adapter and turning clockwise until you hear a click. (To remove the lens from the adapter, press down on the lens release tab on the side of the adapter, turn the lens counterclockwise until the orientation marks are aligned, then pull the lens out from the adapter.)
- Mount PRONTO/Lens Assembly While the Fujifilm X series camera is turned off, remove the lens from the Fujifilm X series camera as you normally would. Install the Leica M lens/PRONTO assembly by lining up the orientation marks on the rear of the adapter and front of the camera, inserting the adapter into the camera’s lens mount then turning clockwise until you here a click which indicates the assembly is safely locked into place on the camera.
Using the adapter
Focusing Modes: Follow the instructions* below to activate the desired
focusing mode on your PRONTO Adapter. To reactivate autofocus mode, set the
in-camera aperture value to f/1.0, then press the shutter button to take one
image. After taking the image, put the camera into AF-S mode. Autofocus will
now be active.
Autofocus Mode
- Mount the PRONTO/lens assembly on your FUJIFILM X-series camera.
- Set the camera to single autofocus mode (AF-S).
- Set the in-camera aperture value to f/1.0.
- Press the shutter button to take one image. You will hear the motor in the PRONTO activate.
- Your PRONTO is now ready to be used in autofocus mode.
Manual Focus Mode
- Mount the PRONTO/lens assembly on your FUJIFILM X-series camera.
- Set the camera to manual focus mode (MF).
- Set the in-camera aperture value to f/29.
- Press the shutter button to take one image. You will hear the motor in the PRONTO activate and the helicoid will fully retract creating the proper flange focal distance for Leica M-mount lenses.
- Your PRONTO is now ready to be used in manual focus mode.
Macro Manual Focus Mode
- Mount the PRONTO/lens assembly on your FUJIFILM X-series camera.
- Set the camera to manual focus mode (MF).
- Set the in-camera aperture value to f/32.
- Press the shutter button to take one image. You will hear the motor in the PRONTO activate and the helicoid will fully extend creating a macro extension tube for Leica M-mount lenses. Your
- PRONTO is now ready to be used in macro manual focus mode.
Setting Focal Length Values
- Mount the PRONTO/lens assembly onto your FUJIFILM X-mount camera
- Set the in-camera aperture value to f/26, then press the shutter button. This will put the adapter into lens focal length setting mode.
- Set the in-camera aperture value to the corresponding value in the table below. Take one image, then power your camera off.
- Wait 2 seconds, then power your camera on. The corresponding focal length is now set.
- This will provide more accurate focusing parameters and appropriate EXIF data for your post processing workflow.*
*Lens data is for common Leica M-mount lenses. EXIF aperture data is to the maximum aperture of the corresponding lens.
Lens Focal Length Settings
Aperture Value| Focal Length, Max Aperture
f/2.5| 18mm, f/3.5
f/2.8| 21mm, f/2.8
f/3.4| 24mm, f/2.8
f/4.0| 25mm, f/2.8
f/4.5| 28mm, f/2.0
f/5.6| 35mm, f/2.0
f/8.0| 50mm, f/1.4
f/11| 75mm, f/1.4
f/16| 90mm, f/2.0
f/22| 135mm, f/3.5
- Reflects firmware ver. 1.14, pub. September 2022
Firmware Upgrade Instructions
Check the firmware version
- Mount the PRONTO adapter on your camera.
- Press and hold the “Display/Back” button on your FUIFILM X-series camera during startup.
- The lens firmware displayed is the current firmware on your PRONTO adapter.
Upgrading the firmware version
- Find the latest firmware version in the Knowledge Base on www.fotodiox.com and download the .bin file.
- Using a data rated micro USB cable, plug the PRONTO adapter into a computer. It will show up as a USB drive labelled “FOTODIOX.”
- Drag and drop the .bin file into this drive.
- After the file has copied, eject and unplug the PRONTO Adapter.
Specifications
| Camera Mount | FUJIFILM X-Series |
|---|---|
| Lens Mount | Leica M Mount |
| Maximum Lens Weight | 600g (1.3lbs) |
| Adapter Weight | 136g (0.3lbs) |
| Maximum Extension | 4.5mm |
Notes:
- The PRONTO adapter relies on the AF sensors of your camera, due to this real world performance will vary from model to model.
- Please note that the PRONTO adapter has a weight limit of 600g (1.3lbs) for the attached lens.
- Telephoto optics may require coarse manual focusing before use.
- The motor, which changes the length of the PRONTO adapter, will make some noise; this is normal.
- If the adapter seems slow to respond, remove the adapter from the camera and check the signal contacts. Clean as needed.
- The weight limit for attached lenses is specified to be 600g or less. Using lenses with a greater weight may result in extra strain on both the motor and the mounts.