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Leica M-Adapter L (Black)

BH #LEMATB • MFR #18771
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Leica M-Adapter L (Black)
Key Features
  • Leica M Lens to Leica L-Mount Camera
  • 6-Bit Coding Sensor
  • Supports Aperture-Priority Metering
Use your M-mount lenses on any camera using an L-mount, such as the SL and T, with this black M-Adapter L from Leica. This precision-crafted tool features a sensor for 6-bit coded lenses, permitting aperture priority modes and accurate exposure metering. It will also write this information to the Exif data.
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Leica M-Adapter L Overview

Use your M-mount lenses on any camera using an L-mount, such as the SL and T, with this black M-Adapter L from Leica. This precision-crafted tool features a sensor for 6-bit coded lenses, permitting aperture priority modes and accurate exposure metering. It will also write this information to the Exif data.

UPC: 799429187712

Leica M-Adapter L Specs

Item Type
1x Lens Mount Adapter
Camera Compatibility
L-Mount
Lens Compatibility
Leica M Mount
Electronic Communication
No
Included Shims
Materials
Metal
Packaging Info
Package Weight
0.435 lb
Box Dimensions (LxWxH)
6.75 x 4.05 x 2.2"

Leica M-Adapter L Reviews

The Best Quality

By Mike
Rated 5 out of 5
Date: 2026-05-26

Been using the Leica m adapter L since I bought the Leica SL 601 11 years ago 5 Leica M Lenses all have their own adapter attached.i don’t like auto focus I only use the M lenses on the SL.11 years ago I walked into the Leica store and wanted to buy the rangefinder 240 but I didn’t like that the 35 mm m lenses blocked the lower right corner of the viewfinder the salesman said we just got in a new Leica SL 601.i told him I didn’t like the size of the SL lenses I don’t like auto focus then he said I could use M lenses on the SL.and it would be manual focus once I looked through that EVF i was blown away how sharp and bright that viewfinder was and it reminded me of looking through my first SLR Nikon F in 1970.i never heard of the SL went home and did my research and found out how the rangefinder cameras get out of calibration and then the focus is off and then you have send the camera in to recalibration.so I bought the SL and only use M lenses.all I do is shoot street and it’s a great setup last 5 years been using the Leica SL2-S with M lenses.love that Leica M-L Adapter.

Works well for my SL3

By Ronald
Rated 5 out of 5
Date: 2024-12-25

Service was great, works well with my SL3!

See any errors on this page?

when used with any of the panasonic S cameras, ...

when used with any of the panasonic S cameras, will this adaptor show F stop if lens is 6 bit?
Asked by: geoff
It is not working to identify the 6-bit coding of the adapted M lenses when pairing with my S5 and S1H. Both cameras have the latest firmware.
Answered by: Steve K
Date published: 2025-09-17

Will my EXIF data be correct with Voigtlander ...

Will my EXIF data be correct with Voigtlander lens on Leica SL?
Asked by: James
If you manually code them as if itd be a leica lens it will.
Answered by: Vadim
Date published: 2022-01-06

Is there a conversion factor when using M lenses ...

Is there a conversion factor when using M lenses on Leca SL or SL2?
Asked by: edward
No, there isn't a conversion factor.
Answered by: Rob
Date published: 2021-02-11

F stop value is off by up to 2 full stops from ...

F stop value is off by up to 2 full stops from what the lens itself reads. If I shoot at f2 manually the computer reads that i shot at f 2.8. What can we make of this?
Asked by: Erik
Are you using a compatible lens? There are only 25 compatible Leica lenses for this adapter--they are listed in the manual on the product page. Please contact the B&H Photo department for further help.
Answered by: Boyd H
Date published: 2023-04-16

Will this Leica M adapter L (18771) work with ...

Will this Leica M adapter L (18771) work with Lumix S1/S1R camera that uses L mount bracket? Panasonic + Sigma + Leica formed a L mount alliance. I want to use this 18771 adapter on Lumix S1 camera.
Asked by: Sai-Yu
Yes, it will work with the new L-mount cameras from Panasonic and will enable you to use your M lens for manual focusing only with these cameras.
Answered by: Richard
Date published: 2021-03-23

Will this adapter enable auto-iso when I want to ...

Will this adapter enable auto-iso when I want to attach third party lens (like Zeiss ZM 35 1.4) on my SL2?
Asked by: Lining
You will be able to use Auto ISO with third party lenses.
Answered by: David B
Date published: 2023-05-17

Can Lumix S1/S1R work with this Leica 18771 ...

Can Lumix S1/S1R work with this Leica 18771 adapter to do aperture priority light metering, while users do manual focusing? I mean, can the Lumix S1/S1R recognize the aperture value of the M lens that also attached to this adapter?
Asked by: Sai-Yu
The adapter can support the aperture priority modes.
Answered by: Reuben K
Date published: 2020-12-18

Do Leica lenses with 6 bits coding transfer their ...

Do Leica lenses with 6 bits coding transfer their data to Panasonic S cameras like Leica SL?
Asked by: Jinho
Yes.
Answered by: Rob
Date published: 2022-01-06
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