Using a Sigma 24-35mm Nikon Mount lens on a Fuji GFX

I am looking for an adapter that will allow my Sigma 24-35 f2 Art lens to be used on a GFX camera.

The main reason is this lens does not have a manually set aperture ring, so I am looking for an adapter which has an electronic connection. Most of my Zeiss lenses also have electronic connections for setting aperture on Nikon bodies, and it would be nice to be able to control the aperture on them without having to stop down in advance.

Thoughts?



Mike

mikeodial said:

I am looking for an adapter that will allow my Sigma 24-35 f2 Art lens to be used on a GFX camera.

The main reason is this lens does not have a manually set aperture ring, so I am looking for an adapter which has an electronic connection. Most of my Zeiss lenses also have electronic connections

Click to expand...

Electronic? Are you sure? The Nikon F mount ZF.2 lenses use the pawl.

mikeodial said:

for setting aperture on Nikon bodies, and it would be nice to be able to control the aperture on them without having to stop down in advance.

Click to expand...

If you have the Nikon version, I think any G adapter will do the job.

--
Posted as a regular forum member.
https://blog.kasson.com

The sigma lens requires electronics to control the aperture similar to the irix 15 mm

mikeodial said:

The sigma lens requires electronics to control the aperture similar to the irix 15 mm

Click to expand...

It’s an E lens?

Jim,

I think so as it requires electronic control to set the aperture.

Mike

mikeodial said:

Jim,

I think so as it requires electronic control to set the aperture.

Click to expand...

That would be the first third-party lens that I know of. You sure it doesn't use a pawl in the camera like the G lenses?

JimKasson said:

mikeodial said:

Jim,

I think so as it requires electronic control to set the aperture.

Click to expand...

That would be the first third-party lens that I know of. You sure it doesn't use a pawl in the camera like the G lenses?

Click to expand...

Just found a test review for the fotodiox adapter that apparently works with the Sigma.

mikeodial said:

JimKasson said:

mikeodial said:

Jim,

I think so as it requires electronic control to set the aperture.

Click to expand...

That would be the first third-party lens that I know of. You sure it doesn't use a pawl in the camera like the G lenses?

Click to expand...

Just found a test review for the fotodiox adapter that apparently works with the Sigma.

https://photographylife.com/reviews/fotodiox-nikon-to-fuji-g-mount-adapter

Click to expand...

That will work for G lenses, which use the pawl. It will not work for E lenses, which use electronic control. There are many adapters that connect Nikon G lenses to the GFX. But you were very clear that the lens you want to connect uses electronic control.

I have several Nikon G to GFX adapters. The Fotodiox is my least favorite.

Jim

--
Posted as a regular forum member.
https://blog.kasson.com

JimKasson said:

mikeodial said:

JimKasson said:

mikeodial said:

Jim,

I think so as it requires electronic control to set the aperture.

Click to expand...

That would be the first third-party lens that I know of. You sure it doesn't use a pawl in the camera like the G lenses?

Click to expand...

Just found a test review for the fotodiox adapter that apparently works with the Sigma.

https://photographylife.com/reviews/fotodiox-nikon-to-fuji-g-mount-adapter

Click to expand...

That will work for G lenses, which use the pawl. It will not work for E lenses, which use electronic control. There are many adapters that connect Nikon G lenses to the GFX. But you were very clear that the lens you want to connect uses electronic control.

I have several Nikon G to GFX adapters. The Fotodiox is my least favorite.

Jim

Click to expand...

I am going to hold off for a while trying to get the Sigma to work. This may require another solution it seems. In the meantime you recommend the Kiron Nikon adapter which must be popular as it's out of stock everywhere it seems.

I did end up getting a used S, so now would love a recommendation for an alternative G adapter to the Kiron, or perhaps I will just wait till they are back in stock. I do have the 135 Zeiss, which by all accounts is a good match for the GFX.

Thank you for your help.

mikeodial said:

JimKasson said:

mikeodial said:

JimKasson said:

mikeodial said:

Jim,

I think so as it requires electronic control to set the aperture.

Click to expand...

That would be the first third-party lens that I know of. You sure it doesn't use a pawl in the camera like the G lenses?

Click to expand...

Just found a test review for the fotodiox adapter that apparently works with the Sigma.

https://photographylife.com/reviews/fotodiox-nikon-to-fuji-g-mount-adapter

Click to expand...

That will work for G lenses, which use the pawl. It will not work for E lenses, which use electronic control. There are many adapters that connect Nikon G lenses to the GFX. But you were very clear that the lens you want to connect uses electronic control.

I have several Nikon G to GFX adapters. The Fotodiox is my least favorite.

Jim

Click to expand...

I am going to hold off for a while trying to get the Sigma to work. This may require another solution it seems. In the meantime you recommend the Kiron

Click to expand...

Kipon

mikeodial said:

Nikon adapter which must be popular as it's out of stock everywhere it seems.

I did end up getting a used S, so now would love a recommendation for an alternative G adapter to the Kiron,

Click to expand...

https://www.bhphotovideo.com/c/prod...6uqM4gIVzLjACh3wUgS4EAQYASABEgI8a_D_BwE&smp=Y

Novoflex is not cheap, but they are well made. I don't know if their GFX adapters are too short by design, like their E-mount adapters.

mikeodial said:

or perhaps I will just wait till they are back in stock. I do have the 135 Zeiss, which by all accounts is a good match for the GFX.

Click to expand...

It is indeed, if you're willing to sacrifice a bit at the extreme corners.

--
Posted as a regular forum member.
https://blog.kasson.com

JimKasson said:

mikeodial said:

Jim,

I think so as it requires electronic control to set the aperture.

Click to expand...

That would be the first third-party lens that I know of. You sure it doesn't use a pawl in the camera like the G lenses?

Click to expand...

The Sigma 500mm F4 DG OS Sports lens (Nikon F mount version) uses electronic aperture control also. So that's one example at least.

I was also wondering whether it might be possible to adapt this lens to the GFX 50 R - if so then it would give me more incentive to get this camera (I would mainly see it as a landscape camera for which it looks brilliant but hard for me to justify the purchase for that use alone, love doing big landscapes but I just don't seem to get to do enough of that these days).

I see that SteelsRing are working on a Nikon to GFX adaptor that will support AF and OS (to be ready for market by around August/September according to latest I have seen). Perhaps I'll have to wait and see what pans out.

Frank

FrankG said:

JimKasson said:

mikeodial said:

Jim,

I think so as it requires electronic control to set the aperture.

Click to expand...

That would be the first third-party lens that I know of. You sure it doesn't use a pawl in the camera like the G lenses?

Click to expand...

The Sigma 500mm F4 DG OS Sports lens (Nikon F mount version) uses electronic aperture control also. So that's one example at least.

Click to expand...

You are correct:

Sigma says: "The lens for the Nikon camera includes the electromagnetic diaphragm mechanism and is able to receive the appropriate signals from the camera body."

Thank you for that information.

But the adapter that the OPP says works for the lens he asked about:

https://www.dpreview.com/forums/post/62644331

Is for G lenses, not E lenses.

FrankG said:

I was also wondering whether it might be possible to adapt this lens to the GFX 50 R - if so then it would give me more incentive to get this camera (I would mainly see it as a landscape camera for which it looks brilliant but hard for me to justify the purchase for that use alone, love doing big landscapes but I just don't seem to get to do enough of that these days).

Click to expand...

You can use it wide open without an E adapter. Or you can use a Nikon body to set the aperture.

FrankG said:

I see that SteelsRing are working on a Nikon to GFX adaptor that will support AF and OS (to be ready for market by around August/September according to latest I have seen). Perhaps I'll have to wait and see what pans out.

Click to expand...

The Sigma 24-35/f2 has an electronically controlled aperture but it also has a pawl that allows any number of Canon EF to Nikon G-mount adapters to mechanically control its aperture.

Although I never used my 24-35 on a Fuji GFX body, I did successfully use it with a Sony A7R / Cambo Actus combo, as well as my modified Cambo WDS FrankenKamera, via a Fotodiox Cinepro Canon EF to Nikon G adapter that has the ability to engage the pawl hence control its aperture mechanically. (The only catch is that it's difficult to know the exact aperture size you have selected, but with practice, you can get a pretty decent handle on that.)

Here's a photo of it mounted on a Cambo Actus lens panel:



As it turned out, the OEM lens hood does double-duty as a baffle to restrict the size of the image circle this lens projects, so I trimmed mine somewhat shorter accordingly:



With the lens hood trimmed as shown in the photo above, I was typically able to apply 6-8 mm of rise / fall / shift movements without an objectional amount of vignetting for my purposes (which were generally photographing architecture and urban street scenes late at night, so I have more flexibility in this respect than many photographers because the edges of my compositions are often black sky or inky black shadows.)

Of course, the GFX's sensor is quite a bit larger than my A7R's sensor, so you may need to forego the lens hood altogether in order to maximize the size of the image circle the lens projects onto the GFX sensor.

AudiiDudii said:

The Sigma 24-35/f2 has an electronically controlled aperture but it also has a pawl that allows any number of Canon EF to Nikon G-mount adapters to mechanically control its aperture.

Although I never used my 24-35 on a Fuji GFX body, I did successfully use it with a Sony A7R / Cambo Actus combo, as well as my modified Cambo WDS FrankenKamera, via a Fotodiox Cinepro Canon EF to Nikon G adapter that has the ability to engage the pawl hence control its aperture mechanically. (The only catch is that it's difficult to know the exact aperture size you have selected, but with practice, you can get a pretty decent handle on that.)

Here's a photo of it mounted on a Cambo Actus lens panel:



As it turned out, the OEM lens hood does double-duty as a baffle to restrict the size of the image circle this lens projects, so I trimmed mine somewhat shorter accordingly:



With the lens hood trimmed as shown in the photo above, I was typically able to apply 6-8 mm of rise / fall / shift movements without an objectional amount of vignetting for my purposes (which were generally photographing architecture and urban street scenes late at night, so I have more flexibility in this respect than many photographers because the edges of my compositions are often black sky or inky black shadows.)

Of course, the GFX's sensor is quite a bit larger than my A7R's sensor, so you may need to forego the lens hood altogether in order to maximize the size of the image circle the lens projects onto the GFX sensor.

Click to expand...

Thanks for the info. I will try this on the adapters I have ordered a ND see if they work. Thanks again

AudiiDudii said:

The Sigma 24-35/f2 has an electronically controlled aperture but it also has a pawl that allows any number of Canon EF to Nikon G-mount adapters to mechanically control its aperture.

Click to expand...

So which is it; E or G? It sounds like you're saying it's both. How does that work?

AudiiDudii said:

Although I never used my 24-35 on a Fuji GFX body, I did successfully use it with a Sony A7R / Cambo Actus combo, as well as my modified Cambo WDS FrankenKamera, via a Fotodiox Cinepro Canon EF to Nikon G adapter that has the ability to engage the pawl hence control its aperture mechanically. (The only catch is that it's difficult to know the exact aperture size you have selected, but with practice, you can get a pretty decent handle on that.)

Click to expand...

That's mechanical aperture control, not electronic aperture control.

AudiiDudii said:

Here's a photo of it mounted on a Cambo Actus lens panel:



As it turned out, the OEM lens hood does double-duty as a baffle to restrict the size of the image circle this lens projects, so I trimmed mine somewhat shorter accordingly:



With the lens hood trimmed as shown in the photo above, I was typically able to apply 6-8 mm of rise / fall / shift movements without an objectional amount of vignetting for my purposes (which were generally photographing architecture and urban street scenes late at night, so I have more flexibility in this respect than many photographers because the edges of my compositions are often black sky or inky black shadows.)

Of course, the GFX's sensor is quite a bit larger than my A7R's sensor, so you may need to forego the lens hood altogether in order to maximize the size of the image circle the lens projects onto the GFX sensor.

Click to expand...

--
Posted as a regular forum member.

JimKasson said:

AudiiDudii said:

The Sigma 24-35/f2 has an electronically controlled aperture but it also has a pawl that allows any number of Canon EF to Nikon G-mount adapters to mechanically control its aperture.

Click to expand...

So which is it; E or G? It sounds like you're saying it's both. How does that work?

Click to expand...

It is both, I guess. The aperture can be controlled electronically via an appropriate camera body or smart adapter or controlled mechanically via a dumb adapter that has an aperture control mechanism, such as the Fotodiox adapter in the photos.

AudiiDudii said:

1. AudiiDudii wrote:

JimKasson said:

AudiiDudii said:

The Sigma 24-35/f2 has an electronically controlled aperture but it also has a pawl that allows any number of Canon EF to Nikon G-mount adapters to mechanically control its aperture.

Click to expand...

So which is it; E or G? It sounds like you're saying it's both. How does that work?

Click to expand...

It is both, I guess. The aperture can be controlled electronically via an appropriate camera body or smart adapter or controlled mechanically via a dumb adapter that has an aperture control mechanism, such as the Fotodiox adapter in the photos.

Click to expand...

That would be surprising. AFAIK, Nikon itself has no such lenses. None of the E lenses that I know of will work with G adapters.

JimKasson said:

JimKasson said:

1. AudiiDudii wrote:

JimKasson said:

AudiiDudii said:

The Sigma 24-35/f2 has an electronically controlled aperture but it also has a pawl that allows any number of Canon EF to Nikon G-mount adapters to mechanically control its aperture.

Click to expand...

So which is it; E or G? It sounds like you're saying it's both. How does that work?

Click to expand...

It is both, I guess. The aperture can be controlled electronically via an appropriate camera body or smart adapter or controlled mechanically via a dumb adapter that has an aperture control mechanism, such as the Fotodiox adapter in the photos.

Click to expand...

That would be surprising. AFAIK, Nikon itself has no such lenses. None of the E lenses that I know of will work with G adapters.

Click to expand...

Just checked the sigma 24-35. It does have a pawl but I have not been able to use it with a marual adapter for adapter on my Sony A7RII however that may just be a function of the adapters and will try it on the Kipon and the Novaflex I just ordered. Will keep you posted.

JimKasson said:

JimKasson said:

1. AudiiDudii wrote:

JimKasson said:

AudiiDudii said:

The Sigma 24-35/f2 has an electronically controlled aperture but it also has a pawl that allows any number of Canon EF to Nikon G-mount adapters to mechanically control its aperture.

Click to expand...

So which is it; E or G? It sounds like you're saying it's both. How does that work?

Click to expand...

It is both, I guess. The aperture can be controlled electronically via an appropriate camera body or smart adapter or controlled mechanically via a dumb adapter that has an aperture control mechanism, such as the Fotodiox adapter in the photos.

Click to expand...

That would be surprising. AFAIK, Nikon itself has no such lenses. None of the E lenses that I know of will work with G adapters.

Click to expand...

I'm no Nikon expert, but I assume this is because none of the current generation Nikon E lenses have a pawl or tab that allows the aperture to also be mechanically controlled?

All of the five (or was it six?) Nikon-mount Sigma Art lenses that I owned didn't have an aperture ring on the lens but they did have a pawl or tab on the rear of the lens that is mechanically connected to the aperture.

Because of this, they'll work with any G adapter so long as it has a mechanical aperture control mechanism built-in (and not all adapters do, so you'll need to verify this before buying one.)

Because they also have electronic contacts at the rear of the lens, it's my understanding they'll also work with any smart adapters that work with E lenses. (That said, I have not verified this personally, only anecdotally, as I don't own any Nikon bodies or adapters for E lenses.)

mikeodial said:

JimKasson said:

mikeodial said:

1. AudiiDudii wrote:

JimKasson said:

AudiiDudii said:

The Sigma 24-35/f2 has an electronically controlled aperture but it also has a pawl that allows any number of Canon EF to Nikon G-mount adapters to mechanically control its aperture.

Click to expand...

So which is it; E or G? It sounds like you're saying it's both. How does that work?

Click to expand...

It is both, I guess. The aperture can be controlled electronically via an appropriate camera body or smart adapter or controlled mechanically via a dumb adapter that has an aperture control mechanism, such as the Fotodiox adapter in the photos.

Click to expand...

That would be surprising. AFAIK, Nikon itself has no such lenses. None of the E lenses that I know of will work with G adapters.

Click to expand...

Just checked the sigma 24-35. It does have a pawl but I have not been able to use it with a marual adapter for adapter on my Sony A7RII however that may just be a function of the adapters and will try it on the Kipon and the Novaflex I just ordered. Will keep you posted.

Click to expand...

As I mentioned in my response to Jim, not all adapters have mechanical aperture control mechanisms, so you'll need to confirm this before buying one.

Unfortunately, the mechanical aperture control mechanisms incorporated into various adapters are not all created equally, so you do get what you pay for hence the reason I gravitated to the Fotodiox CinePro adapters.

They do cost a bit more than the generic, Chinese adapters available via eBay and/or Amazon, but I found them to be worth the extra money. For my purposes, their having an M3 threaded hole on the sliding aperture control tab was a bonus, because I could either use the provided plastic extension (which I found to be a bit flimsy) or replace it with a threaded metal screw to make it possible to control it semi-remotely, as shown in the photo below: