Solid and affordable R to M adapter, maybe even with 6-bit code?

[mbphotox]

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I just ordered the TTArtisan M-Z adapter (6bit) and was hoping to find a good adapter to put on my R lenses.

The Nikon Zf makes for THE perfect digital camera to use R glass on, since it has subject recognition and focus tracking enabled while manually focusing (only with a chipped lens).
This means, even my 180mm f/2.8 is easy to focus, since the camera recognises my son's eye and the focus box will turn green when it's in focus.
And a push of a button zooms in on that eye for critical focus.

I currently use the Neewer adapter, but that one has a fixed focal length of 50mm, which means that the IBIS of the camera gets thrown off with the 28mm and the 90, 135, and 180mm lenses.

I bought the TTArtisan 6bit M-Z adapter, because that lets me choose 90 and 135mm manually to at least get IBIS working better.

Now, if I had an R-M adapter with 6bit code, I could convert that information in the TTArtisan adapter so that the correct focal length AND max aperture both get sent to the camera.

 

Are there any such adapters out there?

 

I also got the 60mm Macro-Elmarit-R with the Macro-Adapter-R recently (will use that to scan my medium format film)

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[mbphotox]

Update:

Saw that there's an original by Leica, sold at an absolutely ridiculous 400 bucks (minimum).. skip!

Then I found a Novoflex Adapter LER/LEM that sells for nearly 200 USD new.. (insane, considering there's no moving parts, no lens elements, etc..)
Could've had one for 90 bucks used (well below common ebay prices), but it was already gone when I decided to take the plunge.

 

So, now I've ordered two adapters from China.

1. K&F Concept for 25 bucks, incl. shipping, taxes, and customs.

2. a no-name one made from brass and aluminium, with 6-bit coding, for 15 bucks all included.

 

If that no-name one turns out to be as awesome as I expect it to, I might just order more of them to have one for each R lens (with the correct 6-bit code)

Here's the list of 6bit codes from lavidaleica

I'll need the 28/2.8, 50/2, 90/2, and 135/2.8
Unfortunately, there's no code for my Macro-Elmarit-R 60mm f/2.8 and the Elmarit-R 180/2.8
(I know why, since the M sucks with long tele lenses and cannot do close focus/macro due to being a rangefinder)

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Since I'll be using the 60mm Macro to scan film, I won't need IBIS anyways. And IBIS for a 50mm focal length should be close enough if I decide to use it outside the office.

[Peter Zapp]

There are no 6 Bit codes for Leica R lenses. There are no 6 Bit codes for many early Leica M lenses, for example 35mm/f1.4 pre-aspherical, 50mm/f1.5, 135mm/f4 etc..

My Leica M10 detects a Leica R-Adapter M, but not the attached R lens (no contacts on lens side). In the M10's menu I can manually select lens profiles for a limited range of R and M lenses, including M lenses that have no 6 it code, for example 35mm/f1.4 pre-aspherical. Likely this applies to other digital Leica bodies (M240, CL, SL, M11). Third-party camera bodies likely have no lens profiles for other brands' lenses, likewise are unable to read 6 Bit codes for Leica M lenses.

My MD to M and R to M adapters from Novoflex are mechanically excellent. My cheap no-name adapters M42 to EOSR and M42 to Leica M are ok. My cheap no-name adapters Leica R to EOSR and Minolta MD to EOSR have play on the lens side.

[masjah]

4 minutes ago, Peter Zapp said:

There are no 6 Bit codes for Leica R lenses. There are no 6 Bit codes for many early Leica M lenses, for example 35mm/f1.4 pre-aspherical, 50mm/f1.5, 135mm/f4 etc..

My Leica M10 detects a Leica R-Adapter M, but not the attached R lens (no contacts on lens side). In the M10's menu I can manually select lens profiles for a limited range of R and M lenses, including M lenses that have no 6 it code, for example 35mm/f1.4 pre-aspherical. Likely this applies to other digital Leica bodies (M240, CL, SL, M11). Third-party camera bodies likely have no lens profiles for other brands' lenses, likewise are unable to read 6 Bit codes for Leica M lenses.

My MD to M and R to M adapters from Novoflex are mechanically excellent. My cheap no-name adapters M42 to EOSR and M42 to Leica M are ok. My cheap no-name adapters Leica R to EOSR and Minolta MD to EOSR have play on the lens side.

My SL2 (with the "official"  Leica R - L adapter) can do better with ROM R lenses, and brings up a "new lens detected" message, together with what the lens is, so that there is no need to go hunting in the R-lens its in order to select it. If you mount a ROM 2X App extender, I think it detects the extender, and then brings up its R lenses list so you can tell it what lens you've mounted on the extender.

[Peter Zapp]

https://ttartisan.store/products/m-z-6bit-adapter-ring?srsltid=AfmBOorpPfheGPTdIIOSMAP3bLjYQvHJel8g_AQVPuumjSQgtfzknXqJ

https://www.l-camera-forum.com/topic/840-any-info-on-converting-lenses-to-rom/

https://www.l-camera-forum.com/topic/276645-rom-leiste-an-r-objektiven-nachrüsten/

20 years ago the ROM upgrade was €100 to €250 per lens.

10 years ago Leica ran out of parts.

[mbphotox]

On 2/10/2025 at 4:40 PM, Peter Zapp said:

There are no 6 Bit codes for Leica R lenses. There are no 6 Bit codes for many early Leica M lenses, for example 35mm/f1.4 pre-aspherical, 50mm/f1.5, 135mm/f4 etc..

My Leica M10 detects a Leica R-Adapter M, but not the attached R lens (no contacts on lens side). In the M10's menu I can manually select lens profiles for a limited range of R and M lenses, including M lenses that have no 6 it code, for example 35mm/f1.4 pre-aspherical. Likely this applies to other digital Leica bodies (M240, CL, SL, M11). Third-party camera bodies likely have no lens profiles for other brands' lenses, likewise are unable to read 6 Bit codes for Leica M lenses.

My MD to M and R to M adapters from Novoflex are mechanically excellent. My cheap no-name adapters M42 to EOSR and M42 to Leica M are ok. My cheap no-name adapters Leica R to EOSR and Minolta MD to EOSR have play on the lens side.

Thanks

I'm fully aware of that. But I don't need profiles for the R lenses or vignetting/distortion correction. (I never do that anyways)

 

The TTArtisan M-Z 6bit adapter reads the 6 bit code of an M lens to tell the camera the exif information:

focal length

max aperture

 

sounds like a silly thing to care about.

But having the correct focal length communicated to the camera means I get 7 stops of in-body stabilisation when shooting handheld.

 

With my neewer adapter, the camera thinks the focal length is fixed at 50mm, which causes issues with IBIS.

 

and with a dumb adapter with no chip to communicate to the camera, you CAN select the focal length and max aperture IN-Camera for correct IBIS functionality.

BUT the autofocus system cannot be used to detect subjects and eyes and track them.. nor will it confirm accurate focus when manually focusing.

 

That's why the TTArtisan is the best adapter so far.

It tricks the camera into thinking that you are using a chipped manual focus length while providing the correct focal length for accurate stabilisation.

Edited February 11 by mbphotox