Leica R-Canon EOS Pro EMF AF Confirm Adapter

Pixco EMF AF Confirm Mount Adapter Ring for Leica R LR Lens to Canon EOS EF 5DIII 6D 70D 700D

 

Product Description

This is a high-precision, programmable adapter ring that allows you to mount Leica R manual lenses onto Canon EOS EF-mount cameras. Featuring an advanced EMF smart chip, it not only provides standard focus confirmation but also enables you to customize and permanently store key lens parameters (max aperture, focal length, focus micro-adjustment) within the chip itself. Precision-engineered for accurate infinity focus, it unlocks the full potential of legendary Leica R glass on modern digital bodies, delivering precise exposure and focusing feedback.

 

Key Features & Benefits

1.Programmable Smart Chip: Manually input and store your lens's maximum aperture, focal length (1-65535mm), and focus micro-adjustment (0-31 steps) data for accurate focus confirmation and EXIF recording.

2.Precision Infinity Focus: Meticulously machined to ensure compatible Leica R lenses achieve sharp focus from close-up to infinity on Canon EF bodies.

3.Flexible Exposure Control: Allows aperture to be set on the camera body (F/1.1-F/64), working in tandem with the lens's aperture ring for versatile shooting methods (see "Basic Shooting Procedures").

4.Reliable Focus Confirmation: Activates the camera's viewfinder focus confirmation indicator and beep, significantly improving the speed and accuracy of manual focusing.

5.High-Quality Metal Build: Precision-crafted from metal for a secure, tight, and wobble-free connection between your lens and camera.

 

Important Precautions

1.Handle with Care: Do not touch the golden contact points on the EMF chip's circuit board when attaching or detaching the adapter to avoid static damage.

2.Avoid Accidental Mode Entry: Do not use the "F/64+shutter -> F/57+shutter -> F/64+shutter" sequence during normal shooting, as this activates the chip's programming mode. If entered accidentally, set an aperture between F/6.3 and F/51 and press the shutter once to exit.

 

Compatibility List

Compatible Lenses: All Leica R-mount lenses.

Compatible Cameras: Canon EOS 5D Mark III, 5D Mark II, 6D, 5D, 7D, 70D, 60D, 50D, 40D, 30D, 100D, 700D, 650D, 600D, 550D, 500D, 450D, 400D, 350D, 300D, 1100D, 1000D.

Not Compatible With: Will NOT work with EOS 30, 30V, 33V, and 1D series cameras.

 

Basic Shooting Procedure (Method 1: Records Set Aperture)

Set the lens aperture ring to its maximum aperture.

Set the desired aperture value on the camera body.

Focus and meter. Once focused, turn the lens aperture ring to match the aperture set on the camera.

Press the shutter button. (EXIF will record the set aperture)

Basic Shooting Procedure (Method 2: Does Not Record Set Aperture)

Set the camera aperture value to the lens's maximum aperture.

Set the camera to Av (Aperture Priority) mode.

Set the desired aperture on the lens aperture ring.

Focus, meter, and shoot. (EXIF will record the lens's maximum aperture)

 

Detailed EMF Chip Setup Guide

The adapter ships with default settings of 50mm F/1.4. Reprogram it according to your lens's specifications for optimal performance.

1. Entering Programming Mode

With the camera power OFF, attach the adapter with lens to the camera. Power ON.

Set the camera to M (Manual) mode, Single shooting drive mode, 1/60s shutter speed, 1/3 EV aperture step.

Perform this sequence: Set aperture to F/64 and press shutter -> Set to F/57 and press shutter -> Set to F/64 and press shutter.

In programming mode, the maximum aperture can be set to F/1.0.

 

2. Programming Modes & Value Entry Rules

There are THREE programming modes, entered by a specific aperture + shutter:

Mode 0 (Set Max Aperture): Set aperture to F/2.0, press shutter.

Mode 1 (Set Focal Length): Set aperture to F/2.2, press shutter.

Mode 2 (Set Focus Micro-Adjust): Set aperture to F/2.5, press shutter.

Aperture-to-Number Conversion Chart (for entering values):

F/2.0=0, F/2.2=1, F/2.5=2, F/2.8=3, F/3.2=4, F/3.5=5, F/4.0=6, F/4.5=7, F/5.0=8, F/5.6=9

 

3. Parameter Setting Steps

Setting Maximum Aperture (Range: F/1.1 - F/45):

Enter Mode 0 (F/2.0+shutter).

Set the aperture dial to your lens's actual maximum aperture (e.g., F/2.0), press shutter to confirm.

Note: Do not set to F/1.0 (reserved) or slower than F/5.6 (may affect AF system).

Setting Focal Length (Range: 1mm - 65535mm):

Enter Mode 1 (F/2.2+shutter).

Focal length must be entered as a 5-digit number, adding leading zeros if necessary. E.g., 50mm is "00050": Operate as F/2.0(0)+shutter -> F/2.0(0)+shutter -> F/2.0(0)+shutter -> F/3.5(5)+shutter -> F/2.0(0)+shutter.

Setting Focus Micro-Adjustment (Range: 0 - 31):

Enter Mode 2 (F/2.5+shutter).

The value must be entered as a 2-digit number, adding a leading zero if necessary. E.g., 25 is "25": Operate as F/2.5(2)+shutter -> F/3.5(5)+shutter.

Note: This value should be determined through practical shooting tests, not calculation alone.

 

4. Saving Settings & Exiting

After entering all parameters, save them by performing this sequence:

Set aperture to F/57 and press shutter -> Set to F/64 and press shutter -> Set to F/57 and press shutter.

If input is correct, settings are saved to the chip (retained when powered off). If incorrect, the adapter exits programming mode without saving.

 

Package Includes

1 x EMF Programmable AF Confirm Adapter for Leica R to Canon EF Mount