Recalibrate NEX-7 electronic level?

Photozopia wrote:

Seems like there is no user method of correction. Sony manuals only seems to offer following advice:

" .... indicates whether the camera is level in both the horizontal and front-back directions. When the camera is level in both directions, the indicator turns to green.

If you tilt the camera to the front or back to a large degree, the level indicator may have a large margin of error.

Errors of approximately ±1° may occur even if the camera’s tilt is mostly adjusted."

So that would be a 'no' then ...