Camera question lumia 925

[altbus1]

Hi,
I have a question about the camera on the lumia 925.
They say it haves a 8.7mp camera but when I take pictures it's resolution is JPEG 7MP.
How can I use the full 8.7MP.

thx

 

[Gor Badoyan]

Switch aspect ratio to 4:3

 

[altbus1]

Thx