Hey folks, I have had my 20d now for many months and I am quickly nearing the 10k marker for photos taken. I had not done a whole lot or really technical shots that required a lot perfect aligning until tonight. What I found, regardless of lens I had on the camera "Tried the stocker, the L 70-200 and the Tamron xr di 28-70" and each lens captured more than the view finder said I was going to get! I am shooting stacks of beer cans right "yeah strange I spose" and they are stack in rows as well as one on top of the other to build a wall. I setup the shot and get all the edges nice and even so as to not get half a can on one side and a complete can on the opposing edge. I take the shot but end up with half a can on one side and unwanted background on the other, even though the shot is lined up spot on in the view finder, Is this something that can be adjusted or is out of adjustment?
I mean, suppose I am going to shoot a close up tight shot of severe peoples faces, I would lose part of the person on the left and get more background than I wanted on the right even though the shot was composed properly in the view finder.
Anyone else have this happen? What should I do?