Best M39 Camera Lens Adapters of 2026

Alan Eaton Avatar
Alan Eaton
Last Updated: Jan 10, 2026

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M39 camera lens adapters are a must-have accessory for photographers who want to expand their lens collection. These adapters allow you to attach M39 lenses to cameras with different mounts, such as Canon, Nikon, Sony, and more. They are made of durable materials and designed to fit snugly and securely onto your camera body. With an M39 lens adapter, you can access a wide range of vintage and specialty lenses that may not be available in your camera's native mount. Whether you're a professional photographer or an amateur enthusiast, M39 camera lens adapters are a versatile and affordable way to enhance your photography skills.

At a Glance: Our Top Picks

(2 Packs) M39 to M42 Adapter Ring Cover #TOP 1
(2 Packs) M39 to M42 Adapter Ring
ftb score rating icon 9.8
Fotodiox M39 to M42 Lens Adapter Cover #TOP 2
Fotodiox M39 to M42 Lens Adapter
ftb score rating icon 9.7
Fotodiox Lens Mount Adapter with 50mm/75mm Frame Line Cover #TOP 3
Fotodiox Lens Mount Adapter with 50mm/75mm Frame Line
ftb score rating icon 9.5

Top 9 M39 Camera Lens Adapters

#TOP 1

(2 Packs) M39 to M42 Adapter Ring

LR3942
39-42mm
(2 Packs) M39 to M42 Adapter Ring Cover
(2 Packs) M39 to M42 Adapter Ring, 39mm to 42mm Lens Adapter, for 42mm Focusing Helicoid

This camera lens adapter allows you to use a 39mm lens with a 42mm thread camera. The all-metal design ensures durability and precision while the adapter can be used with a 42mm focusing helicoid. Sold in a convenient 2 pack, this adapter is a perfect solution for photographers looking to expand their lens collection.

What We Like
Durable all-metal design
Allows use of 39mm lens with 42mm thread camera
Can be used with a 42mm focusing helicoid
#TOP 2

Fotodiox M39 to M42 Lens Adapter

07LAm39m42
Fotodiox M39 to M42 Lens Adapter Cover
Fotodiox Lens Mount Adapter, M39 to M42 (39MM - 42MM Thread) Adapter for Leica, Canon, Nikon, Carl Zeiss, Pentax, Leica

The Fotodiox Lens Adapter lets you easily connect M39 lenses to M42 camera mounts, making it a handy tool for photographers who want to use different lens brands like Leica, Canon, or Nikon. Its sturdy all-metal build ensures durability and long-lasting use, so you don’t have to worry about wear and tear. The smooth surface design helps you mount and unmount your lenses effortlessly, saving you time and frustration. Plus, with a 24-month manufacturer warranty, you get added peace of mind knowing your adapter is backed by reliable support. This makes the Fotodiox Lens Adapter a practical choice for expanding your lens options.

What We Like
Durable all-metal construction
Smooth, easy lens mounting
Compatible with multiple brands
24-month manufacturer warranty
#TOP 3

Fotodiox Lens Mount Adapter with 50mm/75mm Frame Line

L39-50-LM
silver
Fotodiox Lens Mount Adapter with 50mm/75mm Frame Line Cover
Fotodiox Lens Mount Adapter, M39 (39mm x1, Thread Leica Screw Mount) Lens to Leica M Adapter with 50mm/75mm Frame Line, fits Leica M-Monochrome, M8.2, M9, M9-P, M10 and Ricoh GXR Mount A12

This camera lens adapter allows you to mount a M39 thread Leica screw mount lens to a Leica M camera body with 50mm/75mm frame line, including Leica M-Monochrome, M8.2, M9, M9-P, M10, and Ricoh GXR Mount A12. Its all-metal design and smooth surface make it easy to mount the lens effortlessly, and it comes with a 24-month manufacturer warranty.

What We Like
All-metal design for durability
Smooth surface for easy mounting
Compatible with multiple Leica M camera models and Ricoh GXR Mount A12
#TOP 4

Fotodiox Lens Mount Adapter

M39-EOS
Black
M39x1mm
Fotodiox Lens Mount Adapter Cover
Fotodiox Lens Mount Adapter - Compatible with M39/L39 Screw Mount Lenses to Canon EOS (EF, EF-S) Mount SLR Camera Body

The Fotodiox Lens Mount Adapter is a high-quality adapter that allows you to use M39/L39 Screw Mount SLR lenses on your Canon EOS (EF, EF-S) Mount SLR camera body. With its enhanced craftsmanship and high-tolerance construction, this adapter is perfect for demanding professionals. The precise fit and solid connection ensure that there is no play, gap, or wiggling when the lens is mounted on the adapter, and no adjustments are required. The precision all-metal construction with chrome plated brass mounts provides a secure and solid fit. With the Fotodiox Lens Mount Adapter, you can achieve infinity focus or beyond, guaranteeing sharp and clear images. This adapter also comes with a 24 Month Manufacturer Warranty, giving you peace of mind. Upgrade your photography gear with the Fotodiox Adapter and unlock a whole new world of creative possibilities.

What We Like
High-quality construction
Precise fit and solid connection
Infinity focus or beyond guaranteed
#TOP 5

Fotasy Leica M39 Lens to Nikkor Z Mount Adapter

NZ39
M39 39mm to Nikon Z
M39 - Nikon Z
Fotasy Leica M39 Lens to Nikkor Z Mount Adapter Cover
Fotasy Adjustable Leica M39 Lens to Nikkor Z Mount Adapter, M39 Z Adapter, fits Leica 39mm LTM M39 Lens, Compatible with Nikon Mirrorless Camera Z5 Z30 Z50 Z6 Z7 Z6 II Z7 II Z9 z FC

The Fotasy adjustable M39 Z adapter allows Leica M39 LTM 39mm lenses to fit on Nikon Z mount mirrorless cameras without losing infinity focus. The adjustable copper lens mount is solid and durable, and the adapter is compatible with Nikon Z mount mirrorless cameras. However, exposure and focus must be adjusted manually as there are no electrical contacts in the adapter ring.

What We Like
Allows Leica M39 LTM 39mm lenses to fit on Nikon Z mount mirrorless cameras without losing infinity focus
Adjustable copper lens mount is solid and durable
Compatible with Nikon Z mount mirrorless cameras
#TOP 6

Fotasy Copper M39 Lens to Leica L Adapter

LL39
M39 - Leica L
Fotasy Copper M39 Lens to Leica L Adapter Cover
Fotasy Copper M39 Lens to Leica L Adapter, Infinity Focus, Leica M39 39mm Lens Adapter for Leica TL SL Panasonic S Mount, fits on Leica SL/Leica TL2/ Leica TL/ Leica T &Panasonic Lumix S1 S1R

The Fotasy Lens Adapter allows you to mount M39 39mm LTM lenses onto L Mount mirrorless cameras. With infinity focus and an adjustable lens mount, this adapter provides flexibility for manual adjustments. While lacking electrical contacts for automatic functions, it ensures exposure and focus can be manually controlled. Compatible with Panasonic S1 series, Leica SL, TL2, TL, T, and Sigma fp, the Fotasy Lens Adapter offers a seamless transition for photography enthusiasts looking to enhance their lens options.

What We Like
Infinity focus
Adjustable lens mount
Manual exposure and focus
#TOP 7

Fotasy M39 to Canon EOS RF Lens Adapter

ER39
M39 - EOS R
Fotasy M39 to Canon EOS RF Lens Adapter Cover
Fotasy Leica M39 Lens to Canon EOS RF Mount Adapter, Adjustable, 39mm LTM Lens Adapter, Compatible with Canon EOS R Series Mirrorless Cameras

The Fotasy M39 RF Adapter lets you mount Leica M39 39mm LTM lenses onto Canon EOS R series mirrorless cameras. This adapter keeps your camera’s infinity focus intact, so you can capture sharp images at long distances without extra adjustments. Made with a sturdy copper mount, it’s built to last and ensures a secure fit for your lens. Note that this adapter doesn’t have electronic contacts, so you’ll need to manually adjust exposure and focus. It’s perfect for photographers who enjoy full control over their settings while using classic lenses on modern cameras.

What We Like
Infinity focus maintained
Durable copper mount
Manual exposure control
Wide Canon EOS R compatibility
#TOP 8

Fotasy M42 Helicord Macro Focusing Tube

FH42L
35-90mm
Fotasy M42 Helicord Macro Focusing Tube Cover
Fotasy M42 Helicord Adapter, 42mm Focusing Helicoid Extention Tube, Macro Helicord for Enlarger Lens, 35mm to 90mm, fits M42/ M39 Enlarger Lens

The Fotasy M42 Focusing Tube is crafted from lightweight aluminum alloy, making it easy to handle during photography sessions. It features both male and female 42mm threads, ensuring a secure fit with your M42 screw mount lenses, including brands like Carl Zeiss and enlarger lenses. The tube offers a flexible focusing range from 35mm to 90mm, giving you a total of 55mm of movement to fine-tune your focus. This makes it especially handy if your lens lacks a focus ring, allowing you to achieve precise manual focus control for close-up or macro shots.

What We Like
Lightweight aluminum alloy
42mm male and female threads
35mm to 90mm adjustable length
Compatible with M42 screw mount lenses
#TOP 9

Fotodiox Lens Mount Adapter

10M39LM2890
Fotodiox Lens Mount Adapter Cover
Fotodiox Lens Mount Adapter, M39 (39MM x1 Thread, Leica Screw Mount) Lens to Leica M Adapter with 28mm/90mm Frame Line

The Fotodiox Adapter is a camera lens adapter that allows you to mount M39 (39mm x1 Thread, Leica Screw Mount) lenses onto Leica M cameras, such as the Leica M-Monochrome, M8.2, M9, M9-P, M10, and Ricoh GXR Mount A12. This adapter features an all-metal design and a smooth surface, making it effortless to mount your lenses. With the 28mm/90mm frame lines, you can easily compose your shots with precision. The Fotodiox Adapter also comes with a 24-month manufacturer warranty, ensuring its quality and reliability. Whether you're a professional photographer or an enthusiast, this adapter offers convenience and versatility for your Leica M camera system.

What We Like
All-metal design
Smooth surface
28mm/90mm frame lines
Buying Guide Image

Frequently Asked Questions (FAQs)

1. Do camera lens adapters affect quality?

Mount adapters have no glass and generally do not affect the optical performance of a lens unless it is faulty or poorly made. Speed boosters do add extra glass, which can affect image quality.

2. Are lens adapters worth it?

As I said, using adapters definitely has its advantages. It significantly lowers the cost of lenses if you switch systems, for example. If you go, say, from Canon to Sony, you can just buy an adapter and use all those Canon lenses on your new Sony camera body.

3. Is there MFT to EF adapter?

The T Smart Adapter for Canon EF or Canon EF-S Mount Lens to Select Micro Four Thirds-Mount Cameras from Metabones allows a Canon EF or EF-S mount lens to be mounted onto a Micro Four Thirds-mount camera. While doing so, the adapter is designed to support electronic communication between an attached camera and lens.

4. Do lens adapters work with autofocus?

While adapters have been in use for quite some time, they could only mount the lens by way of a machined piece of metal, that would allow you to attach a lens to the body, but not let you autofocus or change the f-stop.

Editor's Notes

During our m39 camera lens adapter research, we found 16 m39 camera lens adapter products and shortlisted 9 quality products. We collected and analyzed 6,496 customer reviews through our big data system to write the m39 camera lens adapters list. We found that most customers choose m39 camera lens adapters with an average price of $18.45.

The m39 camera lens adapters are available for purchase. We have researched hundreds of brands and picked the top brands of m39 camera lens adapters, including Fotasy, Fotodiox. The seller of top 1 product has received honest feedback from 309 consumers with an average rating of 4.8.

Written by
Alan Eaton Avatar

Alan Eaton is a seasoned writer whose expertise is in anything related to electronics, such as headphones, monitoring equipment, computer, and so on, built over a 15-year career in the technology industry. Working in the trade during his youth, he accumulated a great deal of knowledge about machinery.