Samyang has released the new firmware version 2 for the AF 24-70mm f/2.8 FE lens for Sony E mount. You will need a lens station to do the frimware update which you can download here and you can view the update details below.
Samyang AF 24-70mm F2.8 FE is Samyang’s first Auto Focus Standard Zoom lens equipped with various functions optimized for video shooting that is different from other standard zoom lenses. The Samyang AF 24-70mm f/2.8 FE, for Sony FE full-frame and APS-c sensor cameras (giving a “35mm equivalent” field of view of 36-105mm), offers weather sealing, constant aperture, a 9 bladed diaphragm for smooth bokeh and, very interestingly, a parfocal design.
Download link: Samyang AF 24-70mm f/2.8 FE Lens Firmware Version 2
Version 2 Date 2022-03-28 Details – Added custom mode function optimized for Cine Kit (Linear MF Control)
– Improved autofocus performance on video mode on Sony α7SⅡ
The Samyang 24-70 firmware update gives you the ability to have Linear Focusing. Here is a short video displaying the new feature: