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Akara Labs
Leica M Mount Lens Precision 6-Bit Encoder
Leica M Mount Lens Precision 6-Bit Encoder
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Leica M Mount 6-Bit Encoder. The coder clips on to un-encoded lenses and allows quick and easy coding of any M mount lens.
Once the lens is encoded, your Leica camera will know which focal length lens it has mounted and record that information in to your photos (meta data) which will then be displayed in Lightroom and any other software allowing you to filter your photos by lens and focal length.
Your Leica will also apply various adjustments including vignetting, chromatic aberration and barrel distortion for cleaner JPG images and less post processing for RAW files.
Any other manufacturer lenses can also be coded to the closest Leica equivalent, generally improving the quality of your photos through the automatic corrections applied and the recording of meta data for lens length (28mm, 50mm etc).
For coding third party lenses, some experimentation may be required to find the closest and best match. We are actively working on a website to collect data from customers and the Leica community which will be launched in the coming weeks (around July 2024).
If you have a lens not listed in the table below, mounting your camera on a tripod and photographing a scene uncoded, then photographing the same scene with a few of the closest codes will allow you to compare and choose the best one for your particular setup. This should only take around 20 minutes for more than one lens due to it only taking around 20 seconds or so to clean a previous code off a lens and then re-coding it.
If you purchase the full kit, white and black pens are included along with the 6-bit coder, instructions and table of lenses and what to code them to. These pens are fully compatible with the Leica 6-bit sensor.
If you purchase the encoder on its own (instruction are also included) you will need at least a compatible black marker, many black markers do not work with the Leica 6-bit sensor. The recommend pen for use is the Black Uni-ball Super Ink Marker Pen 0.9. A white pen is usually not required but can help with successful coding for the M8 and M240.
A few lenses can have a screw where a 1-bit should be, filling this in with white allows you to then either leave it as white or place a black mark on top of it for successful coding.
Matt Osbourne, a professional model photographer reviewed version 1 of our encoder. See what he thought about it here:
Please see this excellent table below from lavidaleica.com (The original table was posted on Carsten Whimster's site (site no longer active) and with thanks to Sean Reid, Jan Dvorak, Dante Stella and others who had made it possible).
Thanks also goes out to many others in the Leica community who are providing valuable information that allow us all to code our lenses effectively.
| Lens Name | Black | Chrome | Code | Picture | Framelines | Other Lenses |
| Tri-Elmar-M 16-18-21mm f/4 ASPH | 11626 | - | 010000 | ⬜⬛⬜⬜⬜⬜ | 28/90 | Voigtländer 15mm f/4.5 |
| Super-Elmar-M 18mm f/3.8 ASPH | 11649 | - | 110100 | ⬛⬛⬜⬛⬜⬜ | 50/75 | Zeiss Distagon T* 4/18 ZM |
| Super-Elmar-M 21mm f/3.4 | 11145 | - | 110011 | ⬛⬛⬜⬜⬛⬛ | 28/90 | |
| Elmarit-M 21mm f/2.8 | 11134 | - | 000001 | ⬜⬜⬜⬜⬜⬛ | 28/90 | Konica M-Hexanon 21-35mm f/3.4-4.0 Voigtländer 21mm f/1.8 Ultron |
| Elmarit-M 21mm f/2.8 ASPH | 11135 | 11897 | 011000 | ⬜⬛⬛⬜⬜⬜ | 28/90 | Voigtländer 21mm f/4 Color Skopar Zeiss Biogon T* 2.8/21 ZM Kobalux 21mm f/2.8 |
| Summilux-M 21mm f/1.4 ASPH | 11647 | - | 101111 | ⬛⬜⬛⬛⬛⬛ | 28/90 | |
| Elmar-M 24mm f/3.8 ASPH | 11648 | - | 110010 | ⬛⬛⬜⬜⬛⬜ | 24/35 or 35/135 | Voigtländer 25mm f/4 Snapshot Skopar |
| Elmarit-M 24mm f/2.8 ASPH | 11878 | 11898 | 011001 | ⬜⬛⬛⬜⬜⬛ | 24/35 or 35/135 | Zeiss Biogon T* 2.8/25 ZM (with mount fix) |
| Summilux-M 24mm f/1.4 ASPH | 11601 | - | 110000 | ⬛⬛⬜⬜⬜⬜ | 24/35 or 35/135 | |
| Tri-Elmar-M 28-35-50mm f/4 ASPH | 11890 11625 |
11894 | 101010 | ⬛⬜⬛⬜⬛⬜ | 28/90, 24/35, 50/75 | |
| Elmarit-M 28mm f/2.8 (III) | 11804 | - | 000011 | ⬜⬜⬜⬜⬛⬛ | 28/90 | |
| Elmarit-M 28mm f/2.8 (IV) | 11809 | - | 011011 | ⬜⬛⬛⬜⬛⬛ | 28/90 | |
| Elmarit-M 28mm f/2.8 ASPH | 11606 | - | 011100 | ⬜⬛⬛⬛⬜⬜ | 28/90 | Zeiss Biogon T* 2.8/28 ZM Konica M-Hexanon 28mm f/2.8 |
| Summicron-M 28mm f/2 ASPH | 11604 | - | 011010 | ⬜⬛⬛⬜⬛⬜ | 28/90 | Voigtländer 28mm f/1.9 Ultron Voigtländer 28mm f/3.5 Color Skopar Zeiss Biogon T* 2.8/25 ZM |
| Summarit-M 35mm f/2.5 | 11643 | - | 101011 | ⬛⬜⬛⬜⬛⬛ | 24/35 or 35/135 | Voigtländer 35mm f/2.5 Color Skopar |
| Summicron-M 35mm f/2 (IV) | 11310 | 11311 | 000110 | ⬜⬜⬜⬛⬛⬜ | 24/35 or 35/135 | Zeiss Biogon T* 2/35 ZM Minolta M-Rokkor 40mm f/2.0 |
| Summicron-M 35mm f/2 ASPH | 11879 | 11882 | 011110 | ⬜⬛⬛⬛⬛⬜ | 24/35 or 35/135 | Voigtländer 35mm f/1.7 Ultron |
| Summilux-M 35mm f/1.4 ASPH | 11874 | 11883 | 011101 | ⬜⬛⬛⬛⬜⬛ | 24/35 or 35/135 | Voigtländer 40mm f/1.4 Nokton |
| Elmar-M 50mm f/2.8 | 11831 (11824) |
11823 | 100010 | ⬛⬜⬜⬜⬛⬜ | 50/75 | |
| Summarit-M 50mm f/2.5 | 11644 | - | 101100 | ⬛⬜⬛⬛⬜⬜ | 50/75 | Voigtländer 50mm f/2.5 Color Skopar |
| Summicron-M 50mm f/2 (III) | 11817 | - | 010111 | ⬜⬛⬜⬛⬛⬛ | 50/75 | Konica M-Hexanon 50mm f/2 |
| Summicron-M 50mm f/2 (IV, V) | 11819 11826 |
11825 11816 |
100001 | ⬛⬜⬜⬜⬜⬛ | 50/75 | Zeiss Planar T* 2/50 ZM |
| APO-Summicron-M 50mm f/2 (VI) | 11141 | - | 101001 | ⬛⬜⬛⬜⬜⬛ | 50/75 | |
| Summilux-M 50mm f/1.4 (II) | 11868 | 11856 | 000101 | ⬜⬜⬜⬛⬜⬛ | 50/75 | |
| Summilux-M 50mm f/1.4 ASPH | 11891 | 11892 | 100000 | ⬛⬜⬜⬜⬜⬜ | 50/75 | Voigtländer 50mm f/1.5 Nokton Zeiss C Sonnar T* 1.5/50 ZM |
| Noctilux-M 50mm f/1 | 11821 11822 |
- | 011111 | ⬜⬛⬛⬛⬛⬛ | 50/75 | |
| Noctilux-M 50mm f/0.95 ASPH | 11602 | - | 110001 | ⬛⬛⬜⬜⬜⬛ | 50/75 | |
| Summarit-M 75mm f/2.5 | 11645 | - | 101101 | ⬛⬜⬛⬛⬜⬛ | 50/75 | Voigtländer 75mm f/2.5 Color Heliar |
| APO-Summicron-M 75mm f/2 ASPH | 11637 | - | 100100 | ⬛⬜⬜⬛⬜⬜ | 50/75 | |
| Summilux-M 75mm f/1.4 | 11810 11814 11815 |
- | 100011 | ⬛⬜⬜⬜⬛⬛ | 50/75 | |
| Macro-Elmar-M 90mm f/4 | 11633 | 11634 | 100111 | ⬛⬜⬜⬛⬛⬛ | 28/90 | |
| Macro-Adapter-M | 14409 | - | 101000 | ⬛⬜⬛⬜⬜⬜ | 28/90? | |
| Tele-Elmarit-M 90mm f/2.8 (II) | 11800 | - | 000100 | ⬜⬜⬜⬛⬜⬜ | 28/90 | Konica M-Hexanon 90mm f/2.8 |
| Elmarit-M 90mm f/2.8 | 11807 | 11808 | 100110 | ⬛⬜⬜⬛⬛⬜ | 28/90 | |
| Summarit-M 90mm f/2.5 | 11646 | - | 101110 | ⬛⬜⬛⬛⬛⬜ | 28/90 | |
| Summicron-M 90mm f/2 (II) | 11136 | 11137 | 000111 | ⬜⬜⬜⬛⬛⬛ | 28/90 | |
| APO-Summicron-M 90mm f/2 ASPH | 11884 | 11885 | 100101 | ⬛⬜⬜⬛⬜⬛ | 28/90 | |
| Elmarit-M 135mm f/2.8 (I/II) | 11829 | - | 001001 | ⬜⬜⬛⬜⬜⬛ | 28/90 | |
| APO-Telyt-M 135mm f/3.4 | 11889 | - | 110101 | ⬛⬛⬜⬛⬜⬛ | 35/135 |
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M
Mr Booker I bought the kit to add 6bit encodings to my non-leica lenses and it works fantastic. Couldn't recommend more highly
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Toyokazu Matsumura I'm very happy to get Leica 6-Bit Encoder.I've wanted this product for a long time, but it was already sold out on other sites, so I'm extremely happy to be able to get it.
R
Ron N The white pen was empty when it arrived, all dried out. So it’s doesn’t work.
Hi, the white pen is a paint pen and needs to be pressed/pumped via the nib to start the flow of 'ink'. Please try shaking for 30 seconds and then priming it on some old paper first, sometimes they can take quite a few pumps to begin properly flowing. The pens are new and from a reliable supplier so there should be no issue with the pen itself but I can understand why you may have thought it was dead on arrival.
L
LeicaBoo It does exactly what it's supposed to do.
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MARK THOMPSON The 6 bit coding worked perfectly with my Voigtlander lenses and Leica cameras.