New Steelsring EF/GFX PRO Edition Launched

Steelsring is launching the Steelsring EF/GFX PRO Edition smart autofocus adapter. In addition to the multifunctional button there is also an aperture ring with A/C switch like we find it on Fujinon GF lenses.

FUJI Lens Mode Switch Simulation

FUJIFILM GF lens support mode C (Aperture priority by camera command dial) , mode A (Programming auto mode by camera) and Aperture dial mode.

For Steelsring EF/GF I/II/III adapters, with the help of short click of adapter’s MFB (multi-function button), it is able to simulate the mode switch simulation between C and A modes. initial mode simulation is mode C.

For PRO edition, with the add-on control ring in aperture body, it is possible to simulate an aperture dial too, the mode will cycle in C->A->Aperture Dial for PRO edition via short click of MFB, initial mode simulation for PRO edition is aperture dial instead of C for I/II/III adapters.

Lens mode switch simulation works always, is not relevant to adapter’s working mode as Adapter or GF lens simulation.

About MFB（multi-function button)

  • Activate firmware update mode for I/II/III and PRO adapters.
    Press and hold MFB, then connect to PC/MAC via USB cable, then release the button will enable adapter enter firmware update mode.
  • When mounted on camera body with lens combination, after camera power on normally
    1. Short click MFB once, will start lens mode switch between C and A for I/II/III adapter, or C->A->Aperture dial for PRO adapter.
    2. Press and hold MFB for 5 secs or longer, then release MFB, will trigger adapter’s mode switch between Adapter mode and GF lens simulation mode, camera body will reboot EF/GFX adapter to be effective immediately.

About Manual Focus Ring (PRO edition only, not available for I/II/III adapters)

When lens mode switch simulation is in C or A mode, aperture control is done via camera body dial, then we use the control ring to simulate a manual focus ring, it is more like power focusing of curtain EF lenses. To be effective, lens body AF/MF mode switch must be set to AF, and camera body focus mode dial set to MF. Turning control ring, it will activate camera’s MF assistant automatically.

About Automatic Focus Bracketing (PRO edition only, not available for I/II/III adapters)

When PRO adapter’s control ring can function as manual focus ring, it is able to set the begin and end positions of auto focusing bracketing depth now. So before entering Auto Focusing bracketing setting in camera body menus, please make sure adapter’s lens mode switch simulation is in C or A mode, and set Lens body AF/MF mode to AF, then turn the adapter’s control ring to set the position accordingly. Please do not turn lens body’s manual focus ring, it is useless because lens won’t report any distance change after focusing position changed, but FUJI’s algorithm need that value.

After finishing automatic focus bracketing positioning setting, control ring can be set to aperture dial simulation again.

You can read more at the Steelsring page here.

Review of the Steelsring Nikon F to Fujifilm GFX Smart Autofocus Adapter

 

After a long wait, the Steelsring Nikon F to Fujifilm GFX Smart Autofocus Adapter started to be available towards the end of 2019.

You can find it here on AmazonUS.

No Dylan published his review, which you can see below. Here are the main points:

  • it’s not the cheapest adapter
  • allows you to autofocus with the more modern Nikon G and E type lenses
  • good build quality
  • mounting on GFX mount does not sound quite as smooth as mounting a GFX lens on the body or a Laowa lens. On the other side, the Nikon mount part feels good
  • ability to control aperture
  • you have an aperture ring on the adapter for G type lenses, and you can set it to AUTO for E type lenses
  • E type lenses with magnetic aperture can be controlled electronically via the GFX body
  • G type lenses are not really fully supported. Aperture control is purely mechanical and the adapter doesn’t actually know which position it is in. Aperture value is not send to the camera. The lens can only communicate to the body what its widest aperture is, but if you stop down, it is unable to tell you who much it stopped down
  • loose aperture ring
  • aperture stops are very close together, hence not easy to be accurate
  • autofocus speed depends a lot on the lens.
  • you will see wobbeling of the contast AF detect system
  • GFX100 phase detection system is not supported
  • You won’t get Nikon level focus speed, because the GFX system is not capable of that
  • if you accept an autofocus speed a bit slower than native GFX lenses, then it can work for you
  • there is more or less strong vignetting depending on the lens
  • wide open, sharpness is not quite as high as on Nikon cameras, as the Nikon lenses where not designed to resolve over such a large sensor. If you stop down, things get much better
  • for more sharpness better use GFX lenses

This is the summary of the video below. But Dylan posted an article about it also on fstoppers, that you can read here.

  • Steelsring NK-F/GFX smart autofocus adapter: AmazonUS / eBay

Fujifilm GFX 100: B&H Photo, AmazonUS, Adorama, Focuscamera

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Steelsring Nikon to Fujifilm GFX Autofocus Smart Adapter Firmware 1.03 Released

 

Steelsring has released firmware 1.03 for their Nikon to Fujifilm GFX smart autofocus adapter.

  1. Bug fixes, improve Tamron and Sigma F-mount lens compatiability
  2. Improve AF lock accuracy

For Mac OS 10.7.5+ users only:

You have to disable Gatekeepr before start firmware updater, and remeber to enable it again when it’s done.
To disable it: sudo spctl –master-disable
To enable it: sudo spctl –master-enable
Please refer to http://osxdaily.com/2015/05/04/disable-gatekeeper-command-line-mac-osx/ for more details

Here are the firmware download links for Windows and for Mac.

  • Steelsring NK-F/GFX smart autofocus adapter: AmazonUS / eBay

Fujifilm GFX 100: B&H Photo, AmazonUS, Adorama, Focuscamera

The GFX Community

Follow FujiRumors: Facebook, Flipboard, Instagram, RSS-feed, Youtube and Twitter