A900 OVF misalignment with shifting on the right

I've just checked it: it is in the right position.
What I have to do?

It is really strange: what I see in the OVF is not the same of The image taken. The taken photo is a bit (2-3%) on the right and I lost the same portion of image on the left. It means if you put your object In the centre of the OVF, after you will find it on the taken image a bit on the right.
It is terrible!

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