Focusing screen not square (450d/XSi)

Started May 21, 2013 | Discussions thread
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AnthonyL
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Focusing screen not square (450d/XSi)
May 21, 2013

From time to time I've tried to use the focus points to try and align vertical and/or horizontal lines for instance of buildings, only to get home and find I'm having to rotate the image to get it square.

Today I belatedly tried a couple of tests using the frames of the lounge window.  In this picture the centre focus was directly on the vertical/horizontal intersection, the vertical points on the vertical bar and the horizontal points on the horizontal bar.  Handheld but that isn't the problem (I'm still fairly steady ).

A similar test using the grid lines on live view is satisfactory.

I reckon the image is about 2.15deg out.  Are there any easy solutions?

Focus points where aligned to bars when taken.

 AnthonyL's gear list:AnthonyL's gear list
Canon EOS 450D Canon EF 50mm f/1.8 II Canon EF-S 10-22mm f/3.5-4.5 USM Canon EF-S 55-250mm f/4-5.6 IS Canon EF-S 18-55mm f/3.5-5.6 IS +1 more
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