Sony released Firmware Updates for Sony a9 II cameras offering faster FTP transfer and 24mm F1.4 GM & 135mm F1.8 GM lenses offering improved aperture response when lens is attached to a9, a9 II and a7R IV cameras and “Focus Priority” in “Aperture Drive in AF” menu when attached to a9 (fw 6.00 or later).
Sony a9 II (Firmware Update 1.01 download here)
Benefits and improvements:
• FTP transfer can be started earlier after shooting pictures
• Improves the overall stability and performance of the camera:
–Corrects a specific condition where the camera can sometimes turn off when playing back RAW images
–JPEG Image quality is more consistent when shooting under specific conditions
READ: Bulletproof Guide to Sony Camera Firmware Updates
Sony 24mm f/1.4 GM (Firmware Update 02 download here)
Benefits and improvements:
• Improved aperture response when the lens is attached to the ILCE-9, ILCE-9M2 and ILCE-7RM4 camera models.
• “Focus Priority” can be selected from the “Aperture Drive in AF” menu
when the lens is attached to an ILCE-9 camera (with firmware version
6.00 or later).
Notes:
• It is not possible to execute the lens firmware procedure with the
following E-mount cameras: NEX-5, NEX-3, NEX-C3, NEX-VG10, PXW-FS7.
• When using the PXW-FS7M2, follow the steps as specified in the instruction manual.
Sony 135mm f/1.8 GM (Firmware Update 02 download here)
Benefits and improvements:
• Improved aperture response when the lens is attached to the ILCE-9, ILCE-9M2 and ILCE-7RM4 camera models.
• “Focus Priority” can be selected from the “Aperture Drive in AF” menu
when the lens is attached to an ILCE-9 camera (with firmware version
6.00 or later).
Notes:
• It is not possible to execute the lens firmware procedure with the
following E-mount cameras: NEX-5, NEX-3, NEX-C3, NEX-VG10, PXW-FS7.
• When using the PXW-FS7M2, follow the steps as specified in the instruction manual.