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Lens Firmware Update for Improved Stability with Sony α7 V (a7M5)

2026-01-070

[Notice] Lens Firmware Update for Improved Stability with Sony α7 V (a7M5)

Thank you for using LK SAMYANG lenses.

To ensure more stable performance when using our lenses with the Sony α7 V (a7M5), we are releasing firmware updates in stages.

This update improves communication stability with the Sony α7 V (a7M5) and enhances reliability and operational stability in AF-S mode and overall lens operation.

■ The following lenses are included in this firmware release.

1) New Firmware Release Date: 2026.01.06

LensFirmware
AF 14-24mm F2.8 FEVer. 3
AF 24-60mm F2.8 FEVer. 2
AF 35-150mm F2-2.8 FEVer. 3
Remaster SlimVer. 3
AF 16mm F2.8 P FEVer. 2
AF 85mm F1.8 P FEVer. 2
AF 35mm F1.4 P FEVer. 2

2) New Firmware Release Date: 2026.01.13

LensFirmware
V-AF 20mm T1.8 FEVer. 2
V-AF 24mm T1.8 FEVer. 6
V-AF 35mm T1.8 FEVer. 6
V-AF 45mm T1.8 FEVer. 4
V-AF 75mm T1.8 FEVer. 7
V-AF 100mm T1.8 FEVer. 4
AF 12mm F2 EVer. 4
AF 14mm F2.8 FEVer. 27
AF 35mm F1.8 FEVer. 5
AF 85mm F1.4 FEVer. 7
AF 85mm F1.4 FE ⅡVer. 3
AF 24-70mm F2.8 FEVer. 5

■ Key Improvements

• Improved operational stability with the Sony α7 V (a7M5) • Enhanced stability and reliability in AF-S mode and overall lens operation

■ Download & Update

Download the latest firmware from: Support → Download → Firmware

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