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AstrHori
⚠️ Before Firmware Update
Before performing the update, please read the instruction manual or the precautions below and follow the correct procedure.
Please note that incorrect update methods may cause the product to malfunction.
AstrHori AF 85mm F1.8 II
Sony E-mount
*Latest firmware (as of March 31, 2026)
[Update Details]
- Improved compatibility and adaptability with camera bodies
- Optimized overall lens operational stability
- Fixed known bugs to provide a more comfortable user experience
Nikon Z-mount
*Latest firmware (as of March 31, 2026)
[Update Details]
- Improved exposure accuracy in certain shooting scenarios for some models
- Improved smoothness of aperture adjustment operations on the camera body
- Optimized focus responsiveness when operating the focus ring for some models
- Improved compatibility with some models
- Fixed known bugs and improved overall stability
Leica L-mount
*Latest firmware (as of March 31, 2026)
[Update Details]
- Improved compatibility with camera bodies
AstrHori AF 27mm F2.8 STM
Sony E-mount
*Latest firmware (as of March 31, 2026)
[Update Details]
- Improved compatibility with camera bodies
Nikon Z-mount
*Latest firmware (as of March 31, 2026)
[Update Details]
- Improved exposure accuracy in certain shooting scenarios for some models
- Improved smoothness of aperture adjustment operations on the camera body
- Optimized focus responsiveness when operating the focus ring for some models
- Improved compatibility with some models
- Fixed known bugs and improved overall stability
AstrHori Exposure Meter XH-2
(OLED Display, USB Rechargeable)
SG-image
⚠️ Before Firmware Update
Before performing the update, please read the instruction manual or the precautions below and follow the correct procedure.
Please note that incorrect update methods may cause the product to malfunction.
SG-image AF 55mm F1.8 STM
Nikon Z-mount
[Update Details]
- Improved an issue where the lens would switch to MF after waking from standby on Z50II, Zf, and Zfc, and AF could not be restored.
- Improved an issue where focus speed would slow down on the Z6III when repeatedly moving focus using touch operation in AF-C mode.
- Improved an issue where exposure would be incorrect when shooting with small apertures using maximum aperture control (Iv function) on the Z8.
SG-image AF 35mm F2.2
Sony E-mount
*Latest firmware (as of August 10, 2026)
[Update Details]
- Compatible with Sony α7R VI, optimized focus stroke.
SG-image AF 25mm F1.8
Sony E-mount
*Latest firmware (as of March 13, 2026)
[Update Details]
- Optimized lens distortion correction
Show previous versions
Update Details: Changed EXIF information to "SG-image 25mm F1.8 E"
Update Details: Optimized focus issue during video recording after AF activation on some cameras
Fujifilm X-mount
*Latest firmware (as of March 13, 2026)
[Update Details]
- Optimized lens distortion correction
Show previous versions
Update Details:
・Improved focus stability
・Improved communication stability
Update Details:
・Focal length adjustment
・AF performance optimization
・Improved stability
Nikon Z-mount
*Latest firmware (as of November 26, 2025)
[Update Details]
- Optimized AF stability
- Improved an issue where some cameras could not enter sleep mode
Micro Four Thirds
*Latest firmware (as of August 3, 2026)
[Update Details]
- Improved AF (Autofocus) speed
- Fixed an issue where continuous AF (AF-C) might not work correctly during video recording on some models
Viltrox
VILTROX TELECONVERTER 2.0x
VILTROX TELECONVERTER 2.0x Compatible Lens List