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Canon 15-85 mm works against the bright light quite well. Despite a large amount of elements, and so a lot of air-glass boundaries, on which can occur light losses, and a wide angle of view, there aren’t many light artifacts in the pictures. They can be obtained only when a bright source of light is placed close to one of corners of the frame, but even then they aren’t that multiple and they’re not very intensive.
It’s worth to add, that the lens can show different effects depending on the camera body we use. For instance, in every situation the light artifacts recorded by Canon 7D were larger and more intensive than those observed on EOS 50D.
