Leica S lens on Fuji GFX 50s

[Einst_Stein]

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1 hour ago, BernardC said:

That was my point. Why hint that there could be a problem, when no problem has surfaced after a decade?

The old battery was never compatible with the S-007 or S3, so that's not an issue either. I'm not sure why you keep bringing it up. 

When did I hint the new battery has problem with old S camera?  Read all posts carefully.  

What we have talked about are the cross platform adapter's risk of reliability to the camera or the lens, and the Leica S new/old battery with old/new charger.

I will repeat loud and clear just for you: Leica New S battery is fully compatible with both old and new Leica S camera!

Now you can feel safe to sleep. 

Edited March 19 by Einst_Stein

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[BernardC]

9 hours ago, Einst_Stein said:

What we have talked about are the cross platform adapter's risk of reliability to the camera or the lens, and the Leica S new/old battery with old/new charger.

There were never any problems with the new battery and the old charger either.

Granted, the double charger was unreliable, but this has nothing to do with which battery you put in it. It was unreliable with both types of batteries. On the other hand, the single-battery charger has had no such issues.

[tom0511]

vor 19 Stunden schrieb Einst_Stein:

 No one said new battery not compatible with old S cameras. 

Hi there,

the old S battery doesnt work in the new camera anyways, so Leica doesnt have to warn us, it does not work anyways. So you cant use it in it.

[helged]

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[Sarnian]

This has been a long road, but it looks good to me. 👍

I hope to get a shipping confirmation in 11 days' time! 

Edited March 21 by Sarnian

[davidmknoble]

I’m going to suggest we move battery discussions to a different thread as this is about Fuji lenses on the S system.  Lecia engineers are really smart, and while new equipment may have faults, older equipment would have well communicated faults on the electrical side.

I’m not interested in Fuji lenses, but I do love the adapters Leica has created because it has opened up a host of lens types to use with the S and SL system.  The interesting part is that some adapters are full use (S to L allows the SL system to focus the S lens as well as set the f/stop) and some are partial use - manual f/stop and focusing.  

The new Fuji tilt shift lens for their medium format could be an interesting use case on the S system (if it would work) as I have always wanted a wider angle tilt shift for the S.

(Sorry, its other way round, S lenses on Fuji, although I’d still be interested on the Fuji Tilt Shift for the S!)

Edited March 21 by davidmknoble

[chrismuc]

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On 3/21/2025 at 7:24 PM, davidmknoble said:

I’m going to suggest we move battery discussions to a different thread as this is about Fuji lenses on the S system.  Lecia engineers are really smart, and while new equipment may have faults, older equipment would have well communicated faults on the electrical side.

I’m not interested in Fuji lenses, but I do love the adapters Leica has created because it has opened up a host of lens types to use with the S and SL system.  The interesting part is that some adapters are full use (S to L allows the SL system to focus the S lens as well as set the f/stop) and some are partial use - manual f/stop and focusing.  

The new Fuji tilt shift lens for their medium format could be an interesting use case on the S system (if it would work) as I have always wanted a wider angle tilt shift for the S.

(Sorry, its other way round, S lenses on Fuji, although I’d still be interested on the Fuji Tilt Shift for the S!)

The flange distance of mirrorless GFX is shorter than DSLR Leica S. So, Leica S lenses can be mounted on GFX (with suitable adapter) but not the other way around.

Btw., XPimage also in not too far future will announce an AF adapter to mount S lenses on GFX cameras. 

[Tirpitz666]

Great news about that XPimage adapter, every competition is welcome to drive prices down 🙂

 

Looking forward to see how the Kipon one will finally perform.

[tom0511]

I wonder how fast and good those adapter can focus?

I recently tried S-lenses on the Leica SL3 via adapter and the AF is huting and not great, much slower than on a Leica S body.

Any information how the kipon on the Fuji works? does it use phase detect sensors or just contrast based? Do we have reasons to hope that the S lens on Fuji works faster than on sl3?

[helged]

1 minute ago, tom0511 said:

I wonder how fast and good those adapter can focus?

I recently tried S-lenses on the Leica SL3 via adapter and the AF is huting and not great, much slower than on a Leica S body.

Any information how the kipon on the Fuji works? does it use phase detect sensors or just contrast based? Do we have reasons to hope that the S lens on Fuji works faster than on sl3?

I guess the focus speed is slow, possibly as slow as with S-bodies. Actually, I sort of hope for slow focusing. Otherwise I fear (parts of) the focus mechanism to malfunction. 

The advantage with an electronic adapter is that the aperture can be altered. Plus that you can put the focus point anywhere in the image. I wouldn't think the lens' focal length to be automatically set, so I imagine this have to be set manually (needed for IBIS to work properly). 

[tom0511]

vor 3 Minuten schrieb helged:

I guess the focus speed is slow, possibly as slow as with S-bodies. Actually, I sort of hope for slow focusing. Otherwise I fear (parts of) the focus mechanism to malfunction. 

The advantage with an electronic adapter is that the aperture can be altered. Plus that you can put the focus point anywhere in the image. I wouldn't think the lens' focal length to be automatically set, so I imagine this have to be set manually (needed for IBIS to work properly). 

Its not that slow on S body, its just slow on SL-series bodies via adapter - I asume it can just use contrast detection on those.

 

[helged]

1 hour ago, tom0511 said:

Its not that slow on S body, its just slow on SL-series bodies via adapter - I asume it can just use contrast detection on those.

 

By slow, I meant the AF speed on S-bodies: I don't hope the speed on GFX exceed the speed on S-bodies.

[ZHNL]

3 hours ago, helged said:

I guess the focus speed is slow, possibly as slow as with S-bodies. Actually, I sort of hope for slow focusing. Otherwise I fear (parts of) the focus mechanism to malfunction. 

The advantage with an electronic adapter is that the aperture can be altered. Plus that you can put the focus point anywhere in the image. I wouldn't think the lens' focal length to be automatically set, so I imagine this have to be set manually (needed for IBIS to work properly). 

I hope it can detect focal length automatically. I haven’t seen a proper designed adapter can’t do that. I remember FUJI contax 645 adapter can even put lens name on the EXIF file. 

[helged]

43 minutes ago, ZHNL said:

I hope it can detect focal length automatically. I haven’t seen a proper designed adapter can’t do that. I remember FUJI contax 645 adapter can even put lens name on the EXIF file. 

Let's hope so. I guess it boils down to how 'deep' Kipon has been able to decode the transfer of signals through the electronic contacts (assuming that the S-lenses pass their electronic signature through some of the contacts). 

[Einst_Stein]

52 minutes ago, helged said:

Let's hope so. I guess it boils down to how 'deep' Kipon has been able to decode the transfer of signals through the electronic contacts (assuming that the S-lenses pass their electronic signature through some of the contacts). 

Typical electronic handshaking invovles a two-way learning process when they are connected. Each party sends out a greeting message untill both parties received and recognized each other.

In the case of third party adapter, two handshaking / learning processes would happen. it means the adapter and the adapted lens forms the first two parties, the adapter and the camera forms the second two parties.

In the case of camera offered adapter such as Leica S-adapter-C, theoretically I assume it is possible that the adapter just passes the handshaking signals without intelligence, and let the camera to handle the rest. It might be as simple as logging the lens type blindly as it received. 

In the case of S-GFX adapter, the GFX camera must have proper equivalent lens type to match the adapter S lens. When GFX has no matching lens type, the best to hope is the best intepretation by the adapter to the camera. 

The complexity might then come to the lens profile and lens correction built-in the camera. It is likely the camera will believe the adapted lens is really its own lens and applies the correction. What would be the result? be prepared!   

It  would be better if GFX camea can turn off the lens correction and whatever the lens olriented intellegence, or simply to log the lens type AS IS without interpretation, If all these lens oriented intelligence are built in the post processor,

 

 

Edited April 1 by Einst_Stein

[irenedp]

I understand the interest of an adapter for the GFX owners. Personally I am more interested in the S4, and probably would trade in my S3 even if it’s contribution to the purchase will be small  I would definitely keep the lenses.  

in case the S4 does not materialize, I would be interested in purchasing the Hasselblad-and eventually an adapter for the S lenses-.  I was never particularly happy with the GFX 100.  A second hand body of the 100 mk1 -the one i had-  can be purchased for a pittance. 

[Sarnian]

20 hours ago, ZHNL said:

I hope it can detect focal length automatically. I haven’t seen a proper designed adapter can’t do that. I remember FUJI contax 645 adapter can even put lens name on the EXIF file. 

The Kipon website states that EXIF information is transmitted:-

● Features

1. Fast and accurate autofocus

2. Support Eye-AF, EXIF information transmission, PDAF, etc.

3. Removable tripod support

4. Type-C firmware update

5. Infinity focus is available

I haven't yet received a shipping confirmation/a tracking number so I live in hope! 

I'm ready and willing to report back when it's in my hands (I'll be using a 70mm CS and 30-90mm lens). 

 

Edited April 2 by Sarnian

[Einst_Stein]

4 hours ago, Sarnian said:

The Kipon website states that EXIF information is transmitted:-

● Features

1. Fast and accurate autofocus

2. Support Eye-AF, EXIF information transmission, PDAF, etc.

3. Removable tripod support

4. Type-C firmware update

5. Infinity focus is available

I haven't yet received a shipping confirmation/a tracking number so I live in hope! 

I'm ready and willing to report back when it's in my hands (I'll be using a 70mm CS and 30-90mm lens). 

 

EXIF generated by lens? or attach the infors from the lens into the EXIF?

If lens sends lens infos to the camera, are those infos in the form of GFX understandable? 

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[davidmknoble]

I think the EXIF is simply a “wait and see” item.

[Sarnian]

I've asked Xiaoming Zhang if there's a hold up on the shipping as I haven't had a shipped confirmation yet. 😗