Sony ILCE-7M3 get iso,iris,shutterspeed cannot accurately

[xujinbook]

Describe the bug
We are using the latest version of gphoto2 to control a Sony ILCE-7M3 camera via USB and have found that we cannot accurately obtain the correct ranges for ISO, shutter speed, and iris, as they do not match those of the camera. Additionally, after changing the focal length, the retrieved value ranges also do not match those of the camera. we very need your help, we can pay for it.

A clear and concise description of what the bug is.

Name the camera
If this is camera specific, include the camera name as shown by gphoto2 --auto-detect or USB IDs

libgphoto2 and gphoto2 version
output of: libgphoto2 2.5.31

To Reproduce
Steps to reproduce the behavior:

If its a camera misbehavior, attach debug output using --debug --debug-logfile=debug.log (if considered useful).