Sigma Issue

Here are two photos took with the same settings at the same time of day. Focused in the same spot. The first one is made with a Sigma Sens 17-55mm (at 17mm), the second is using Nikon's kit-lens 18-55m (at 18mm).

While the right side of the photo is comparably sharp with both lens on, the left side is significantly less sharp and looks out of focus in Sigma (while still sharp with the kit lens). Look at the tree and number 10 to compare.

Sigma lens full photo (17mm):

sigma.jpg

Kit lens full photo (18mm):

kitlens.jpg

Sigma lens right-half:

sigma.jpg

Kit lens right-half:

kitlens.jpg

Sigma lens left-half:

sigma.jpg

Kit lens left-half:

kitlens.jpg

Files:

JPG: Sigma | Kit
NEF: Sigma | Kit

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