Megadap M2RF – the first-ever Leica M to Canon RF Autofocus Adapter!
p.2 #1Megadap M2RF – the first-ever Leica M to Canon RF Autofocus Adapter!
Thanks for the updates. I will look forward to use it.
megadap wrote:
Thanks for sharing, Alex!
We're excited to show what the M2RF can do. Seeing classic lenses paired with modern AF technology opens up some creative possibilities that weren't previously available.
For those curious about real-world performance, here's a quick sneak peek of the M2RF in action:
https://www.instagram.com/p/DZsIoubk8dq/
We're also happy to share that the M2RF is on track for a mid-July launch, with additional details, pricing, and availability information coming soon.
– Megadap Team
megadap wrote:
Thanks for sharing, Alex!
We're excited to show what the M2RF can do. Seeing classic lenses paired with modern AF technology opens up some creative possibilities that weren't previously available.
For those curious about real-world performance, here's a quick sneak peek of the M2RF in action:
https://www.instagram.com/p/DZsIoubk8dq/
We're also happy to share that the M2RF is on track for a mid-July launch, with additional details, pricing, and availability information coming soon.
– Megadap Team
Jun 26, 2026 at 10:56 AM
p.2 #3Megadap M2RF – the first-ever Leica M to Canon RF Autofocus Adapter!
Got my pre-order in! Wonder when it will ship...
Megadap: I see your website hasn't been updated yet. Is there somewhere I can download the PC software?
Also: what is the lens weight limit?
Megadap: I see your website hasn't been updated yet. Is there somewhere I can download the PC software?
Also: what is the lens weight limit?
Jul 21, 2026 at 06:17 AM
p.2 #4Megadap M2RF – the first-ever Leica M to Canon RF Autofocus Adapter!
Last email I got from Megadap was saying mid July... Megadap needs to give us an updated expected shipment date. Again they didn't answer my recent email regarding the shipping date. I saw online posts that Alex Phan has been testing it...
sturmen wrote:
Got my pre-order in! Wonder when it will ship...
Megadap: I see your website hasn't been updated yet. Is there somewhere I can download the PC software?
Also: what is the lens weight limit?
sturmen wrote:
Got my pre-order in! Wonder when it will ship...
Megadap: I see your website hasn't been updated yet. Is there somewhere I can download the PC software?
Also: what is the lens weight limit?
Jul 22, 2026 at 11:12 AM
p.2 #5Megadap M2RF – the first-ever Leica M to Canon RF Autofocus Adapter!
serhan_ wrote:
Last email I got from Megadap was saying mid July... Megadap needs to give us an updated expected shipment date. Again they didn't answer my recent email regarding the shipping date. I saw online posts that Alex Phan has been testing it...
sturmen wrote
Got my pre-order in! Wonder when it will ship...Megadap: I see your website hasn't been updated yet. Is there somewhere I can download the PC software?
Also: what is the lens weight limit?
Yeah: Matt Granger did a video on it too with a lot of the details. I’m not angry about waiting, I’m just an impatiently excited guy 😁
Jul 22, 2026 at 11:40 AM
p.2 #6Megadap M2RF – the first-ever Leica M to Canon RF Autofocus Adapter!
I'm curious to hear what everyone is expecting when it comes to corner performance with this setup! How do you think the corners will hold up?
Jul 22, 2026 at 08:37 PM
p.2 #7Megadap M2RF – the first-ever Leica M to Canon RF Autofocus Adapter!
New review from Digital Camera World: https://www.digitalcameraworld.com/cameras/lenses/megadap-m2rf-review
Jul 23, 2026 at 08:27 AM
p.2 #8Megadap M2RF – the first-ever Leica M to Canon RF Autofocus Adapter!
Megadap put up a bunch of videos on YouTube that linked to here: https://megadap.net/product/megadap-leica-m-to-canon-rf-autofocus-adapter-m2rf/ or found via their YouTube account. The page also highlights using adapters for other mounts to M (like FD; they show a video example with Minolta MD) to get AF on those other mounts. Definitely very intriguing.
Jul 23, 2026 at 10:53 AM
p.2 #9Megadap M2RF – the first-ever Leica M to Canon RF Autofocus Adapter!
This adapter is interesting to me for one reason... I could use it to adapt M42 lenses and gain AF, specifically my Zeiss 75/1.5 Biotar. Might be worth the price of entry just for that one lens.
Jul 23, 2026 at 11:54 AM
p.2 #10Megadap M2RF – the first-ever Leica M to Canon RF Autofocus Adapter!
"Ship in late July" per their website... Yes, it opens the Canon for all other mf lenses with other adapters, eg I can even use Sony A mount lenses...
User guide is posted also:
https://megadap.net/m2rf-manual/
- It is recommended to use lenses weighing no more than 500 grams. Overweight lenses may cause damage to the adapter.
chicago8c wrote:
https://megadap.net/product/megadap-leica-m-to-canon-rf-autofocus-adapter-m2rf/
User guide is posted also:
https://megadap.net/m2rf-manual/
- It is recommended to use lenses weighing no more than 500 grams. Overweight lenses may cause damage to the adapter.
chicago8c wrote:
https://megadap.net/product/megadap-leica-m-to-canon-rf-autofocus-adapter-m2rf/
Jul 23, 2026 at 12:19 PM
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p.2 #11Megadap M2RF – the first-ever Leica M to Canon RF Autofocus Adapter!
R6 tear down at Kolari:
https://kolarivision.com/the-canon-eos-r6-disassembly-and-teardown/
"This filter measures in at 1.25mm thick, significantly thinner than the one in original EOS R which measured 1.6mm."
So mixed bag depending on the lens & camera combo:
https://www.fredmiranda.com/forum/topic/1763008/
You can use Fred's M lens guide for Sony:
https://www.fredmiranda.com/forum/topic/1647789/
msadat wrote:
I'm curious to hear what everyone is expecting when it comes to corner performance with this setup! How do you think the corners will hold up?
https://kolarivision.com/the-canon-eos-r6-disassembly-and-teardown/
"This filter measures in at 1.25mm thick, significantly thinner than the one in original EOS R which measured 1.6mm."
So mixed bag depending on the lens & camera combo:
https://www.fredmiranda.com/forum/topic/1763008/
You can use Fred's M lens guide for Sony:
https://www.fredmiranda.com/forum/topic/1647789/
msadat wrote:
I'm curious to hear what everyone is expecting when it comes to corner performance with this setup! How do you think the corners will hold up?
Jul 23, 2026 at 12:46 PM
p.2 #12Megadap M2RF – the first-ever Leica M to Canon RF Autofocus Adapter!
msadat wrote:
I'm curious to hear what everyone is expecting when it comes to corner performance with this setup! How do you think the corners will hold up?
Given that AF is via a helicoid that moves the entire lens back and forth, it's likely going to negatively affect FLE lenses. I'm expecting it will degrade optical performance with such lenses when best image quality is the desired outcome. This is separate from image quality loss due to sensor stack differences with Canon's system compared to Leica M.
But it's a tradeoff. A lens like the 50 Lux ASPH, which is a floating element design, can be tricky to focus quickly wide open and AF could be beneficial. Wide open work will likely be less critical of edge sharpness degradation and if best image quality is required, the adapter can be locked to infinity and the lens manually focused (and I assume it will benefit from Canon's manual focus aid like the non-AF Shoten adapter that was recently released).
I'm curious to hear what everyone is expecting when it comes to corner performance with this setup! How do you think the corners will hold up?
Given that AF is via a helicoid that moves the entire lens back and forth, it's likely going to negatively affect FLE lenses. I'm expecting it will degrade optical performance with such lenses when best image quality is the desired outcome. This is separate from image quality loss due to sensor stack differences with Canon's system compared to Leica M.
But it's a tradeoff. A lens like the 50 Lux ASPH, which is a floating element design, can be tricky to focus quickly wide open and AF could be beneficial. Wide open work will likely be less critical of edge sharpness degradation and if best image quality is required, the adapter can be locked to infinity and the lens manually focused (and I assume it will benefit from Canon's manual focus aid like the non-AF Shoten adapter that was recently released).
Jul 23, 2026 at 03:00 PM
p.2 #13Megadap M2RF – the first-ever Leica M to Canon RF Autofocus Adapter!
Jul 26, 2026 at 06:12 PM
p.2 #14Megadap M2RF – the first-ever Leica M to Canon RF Autofocus Adapter!
Just came in for a quick word...just received my M2RF. Finished setting up the profiles and tried my Elmar-M 24mm f/3.8 with it. AF worked like a charm. The motor is a bit noisy but it's expected. It's a shame that some of my M-mount lens are over the 500g limit.
Instruction for setting up the profiles is here.. .https://megadap.net/m2rf-manual/
Instruction for setting up the profiles is here.. .https://megadap.net/m2rf-manual/
Jul 29, 2026 at 10:06 PM
p.2 #15Megadap M2RF – the first-ever Leica M to Canon RF Autofocus Adapter!
Not many:
Noctilux-M 75mm f/1.25 ASPH: 1,055g
Noctilux-M 50mm f/0.95 ASPH: 700g
Noctilux-M 50mm f/1.0: 584g
Summilux-M 21mm f/1.4 ASPH: 580g
Time to consider Voigtlander and/or Thypoch Simera?
Noctilux-M 75mm f/1.25 ASPH: 1,055g
Noctilux-M 50mm f/0.95 ASPH: 700g
Noctilux-M 50mm f/1.0: 584g
Summilux-M 21mm f/1.4 ASPH: 580g
Time to consider Voigtlander and/or Thypoch Simera?
Jul 30, 2026 at 06:31 PM
p.2 #16Megadap M2RF – the first-ever Leica M to Canon RF Autofocus Adapter!
megadap,
Found a bug on my M2RF where it can not change lens data/profile with my R5 MKII. Press and hold the AF/MF button for 3s won't allow me to change the aperture value with the dial on the camera.
This issue only happens on my R5 MKII. On my original R5, everything works without problem.
I had sent an email to [email protected] yesterday and waiting for reply. Hopefully a firmware update is coming soon to fix this issue.
Best,
Simon
Found a bug on my M2RF where it can not change lens data/profile with my R5 MKII. Press and hold the AF/MF button for 3s won't allow me to change the aperture value with the dial on the camera.
This issue only happens on my R5 MKII. On my original R5, everything works without problem.
I had sent an email to [email protected] yesterday and waiting for reply. Hopefully a firmware update is coming soon to fix this issue.
Best,
Simon
Jul 30, 2026 at 11:49 PM
p.2 #17Megadap M2RF – the first-ever Leica M to Canon RF Autofocus Adapter!
Update on the lens data/profile switching issue on R5 MKII.
Got an email from Megadap. They are aware of the issue. It affects both R1 and R5 MKII. There's is a temporary workaround in the meantime. Looking forward to a firmware update which solves the issue permanently.
Got an email from Megadap. They are aware of the issue. It affects both R1 and R5 MKII. There's is a temporary workaround in the meantime. Looking forward to a firmware update which solves the issue permanently.
Jul 31, 2026 at 03:41 AM
p.2 #18Megadap M2RF – the first-ever Leica M to Canon RF Autofocus Adapter!
Definitely watching the first reports here... my 75/1.5 Biotar is also (slightly) over the 500g "limit" as it is the later version, so it is 530g and I would need to add an M42 to Leica M adapter.
Jul 31, 2026 at 06:54 AM
p.2 #19Megadap M2RF – the first-ever Leica M to Canon RF Autofocus Adapter!
Joined the forum because of this thread! I just received the M2RF adapter I preordered from B&H; working on getting at least one lens next, as I’m brand new to M mount.
Aug 04, 2026 at 11:44 AM
p.2 #20Megadap M2RF – the first-ever Leica M to Canon RF Autofocus Adapter!
Got a review copy while abroad, so I’ve only tried it with one lens so far, the Leica 28mm on my Canon R8. Worked well, but I have to do a lot more testing with different cameras and lenses before I write something on my blog about it.
Aug 04, 2026 at 12:40 PM