Sigma Releases New Lens Firmware Update

credits: Sigma

Sigma just rolled out a firmware update for eight of its lenses, and it brings some fairly practical changes. The main addition is the ability to reassign the manual focus ring when the lens is set to autofocus. Normally, that ring just sits unused in AF mode, but now it can be mapped to things like aperture, shutter speed, ISO, exposure compensation, white balance, or even autofocus mode.

There is also an option to reverse the focus ring direction in manual focus, which can help if you are used to a different system. On top of that, Sigma added the option to display T-stops instead of f-stops in video, which is more relevant for exposure consistency since T-stops account for actual light transmission.

The update applies to eight lenses, including the 20mm f/2 DG DN, 24mm f/1.4 DG DN Art, 35mm f/1.4 DG DN Art, 50mm f/1.2 DG DN Art, and the 500mm f/5.6 DG DN OS Sports, among others. It is available now as a free download and can be installed either through a compatible camera body or via Sigma’s USB Dock. Strangely, Sigma has not specified exactly which cameras support the new features, only that they require compatible L-mount models.

You can download the update on Sigma’s website here