Rated in the 90th percentile across the aperture range on our SQF charts at 11x14, Excellent. Distortion and vignetting very well controlled.
Standout Spec: Stabilization, once rare for a wide angle zoom, now trendy.
Pentax 17–70mm f/4 DA AL SDM
Pentax 10–17mm f/3.5–4.5 DA Fisheye
Tamron 17-50mm f/2.8 XR DI II
Nikon AF-S DX Zoom-Nikkor 17–55mm f/2.8G ED
Tamron 17-50mm f/2.8 XR DI II VC