The right side of the frame is out of focus

[danusha]

The right side of the frame is out of focus. At the 2.8 aperture, blurring is very noticeable. Images below with an aperture of 2.8.

 

[danusha]

Does anyone know how to adjust the lens ?

 

[lukappaseidue]

I know this issue ...
and not only at F2.8

 

[lukappaseidue]

Does anyone know how to adjust the lens ?

You can't, at now.
the blur issue is not only on the right, but also on the left.
and also, upper or lower right or upper or lower left