Akara Labs

6-Bit Encoder Kit (for Leica M Mount Lenses)

£28.00 GBP

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Kit Encoder Kit

15% discount on any Slim Skin Case with code May15 when purchasing a 6-bit Kit

Leica M Mount 6-Bit Encoder kit (includes pens, encoder, instructions and table of codes). The coder clips on to un-encoded lenses and allows quick and easy coding of any (not limited to) M/LM, ZM and VM mount lens.

Once the lens is encoded, your Leica M and SL2/SL3 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.

An added benefit for SL2 and SL3 users when used with the Leica M adapter, is setting the correct image stabilisation for the lens length.

Any other manufacturer lens can 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 but all M mount lenses can be coded.

The kit includes a compatible white and black pen, along with the 6-bit coder, instructions, and table of lenses and what to code them to.

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.

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.

Note: The QR code on the encoder takes you to the instructions online which includes the table of lens codes. If you are out and about with the encoder and pen in your bag, this should hopefully help code your lens quickly.

For SL2 and SL3 users you will also get the benefit of correct stabilisation automatically. An excellent video by Jonathan Harris at Worldwide Camera Exchange explains in more detail here:

Matt Osbourne, a professional model photographer reviewed version 1 of our encoder. See what he thought about it here:

A short introduction and tutorial can be found 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.

Product photos by the fantastic and talented Rikard Landberg - https://www.rikardlandberg.com

Please be aware that you may be charged import duty/tax by your own country if purchasing from outside of the UK, this is also explained on the checkout page. We have no control over these fees and we do not benefit from them in any way.

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	⬛⬛⬜⬛⬜⬜

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 (1) 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
Summaron-M 28mm f/5.6			001011	⬜⬜⬛⬜⬛⬛	28/90
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/2.0 Ultron II 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 (3)
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
Summilux-M 35mm f/1.4 Steel rim			001100	⬜⬜⬛⬛⬜⬜		Thambar 90mm f/2.2
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	Summarit 5cm f1.5
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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Some few lenses it does not work on, but otherwise fantastic

Gutes Produkt, funktioniert perfekt.

Das Tool ist sehr einfach in der Handhabung und es funktioniert sehr gut mit der Codierung.

Akara 6 bit coder

Simple and easy to use but would suggest better markers and a bigger lens coding repository for many other lenses. I didn’t manage to code my lenses for it to be recognisable and went to get m mount adapters with coding indentation to fit my L 39 and to be able to easily paint the colour codes on.

Problem solved

Having your lenses auto recognized on a Leica camera is a treat and a solution to age old problem. Obvious, but simple solutions to a problem are the best.

Easy to use and it works

Used it for a non-encoded Voigtländer 28mm Ultron 2 lens on my Leica M11 Monochrom. Totally easy to use, and it works. It uses the Leica 28mm Summicron as the equivalent and I see no issues.

Douglas

1 2 3

Let customers speak for us

from 185 reviews

Great protector!

It works well - I love it.

Avery Wagg

09/17/2025

Leica M11 · Slim Skin Case

Nice product, indeed it's slim and it fits my R4a like a glove

Soren

09/08/2025

Voigtländer Bessa · Slim Skin Case

Sven

09/04/2025

6-Bit Encoder Kit (for Leica M Mount Lenses)

John shiever

09/03/2025

Q3 Slim Case

Although there isn't an opening for SD card/Batt which I prefer.
This I must say is one of the most compact and lightweight minimal protection for the Q. With the build in grip which is so comfortable, this is really a good slim case for those who wants to just protect the camera for abit of extra protection from minor scratches and the base keeping it slim, compact and minimal enough. Nice Case.

08/26/2025

Leica Q3 · Slim Skin Case

Douglas Klassen

08/17/2025

Nice Coding Kit!

I was able to 6-bit most of my Voigtländer lenses except the 40mm Nokton. I coded this lens as a 35mm instead. Love the ease of use and that everything was included to complete the coding. Would definitely recommend this product to others.

Jonny O

08/14/2025

Utterly fab

I was a bit skeptical at first regarding the removal of the case to access the SD card and battery. I reached out to Henley and I’m really happy with the case and it’s just great value and has been a joy to use. (X100 vI) case

Simon Wardle-Millar

08/11/2025

FUJIFILM X100VI · Slim Skin Case

Nice product, exactly what I needed

I was looking for something to protect my Q3 while using it on a new project in caves, and this is the perfect solution. It's lightweight, simple, easy to attach and provides a nice sense of security with the added grip as well, while still maintaining the slim, minimal profile of the camera. The addition of the cutout to access the USB ports is also very welcome, and the aesthetic matches the Q3 perfectly. Great product, highly recommended.

Nick St. Oegger

works perfect for my Leica lenses and Fujifilm adapted lenses

Christian

08/09/2025

Does what it says!

Bought the six bit encoder. I did have a small issue getting it to work but the customer service was prompt and excellent. Second lens i managed fine. Good product, well supported.

Paul Graber

08/07/2025

Lightweight protection

Does the job!

Yap

08/02/2025

Great product for third party Leica mount

Highly recommended for those photographers using Voiglander m-mount lens on Leica bodies. Eliminates the need to remember to change lens profiles in body each time you swap focal lengths. But be aware on a Leica SL body you will need to use the Leica M adapter for the 6 bit coding to be read. After market adapters don’t offer that option. The product came shipped perfectly. Glue dots held down pens and device nicely preventing rattling around and possible damages. The product is extremely simple and completely overpriced. But it’s available no where else and I applaud their research and development of the product. I’m happy to support the small business vendors.
Highly recommended the product. It performs as advertised, and 3d printed in quality.

T Perrone

07/30/2025

So far so good.

Works and is easy to set up.

William Mullis

07/29/2025

An simple and excellent product

Making use of 3D printing this product is amazing. The chart of coding is also excellent. I was very happy to pay for a quality product and have managed to code my VM 50/1 and my Chinese replica 7 elements 35mm. Found out my Kobulux or Avelon 21/2.8 need a new LTM adapter to do such automatic coding.
Great seller. Excellent and prompt service. I hope to patronize more as new products become available

Paul Lee

07/26/2025

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6-Bit Encoder Kit (for Leica M Mount Lenses)