freaklikeme wrote:
None of those rooftops are completely in focus. The one on the right side of the frame is closer to the plane of focus, and the tight repeating pattern makes it look more in focus than it is, but it\'s not completely sharp (like the tree, or part of the fence and gate). Perspective does matter. I\'m not saying your lens doesn\'t have an issue, just that this sample isn\'t conclusive. I\'d trying shooting something where the edges are equal distance from the lens (brick walls are good for something).
But why is the plane of focus near anyway? Looks like strong field curvature while nobody here has ever noticed it with their copies. Brick walls don\'t show the issue, nothing at closer ranges.
Here\'s another example:
Shot at F2, focus on the island of trees.
100% crop of the focus point:
Now, a 100% crop of the background near the center:
All still looks fine...
But then the crop of the extreme right edge:
Look at the treetops. They are in focus, yet at the same distance as the trees in the middle of the background. I don\'t think this kind of field curvature is normal for this lens?
Feb 27, 2014 at 07:12 PM
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