SHOOTOUT at 15mm: Tamron SP 15-30mm f/2.8 Di VC USD vs Nikon 14-24mm f/2.8G (dual focus, Pescadero Creek Downstream)
Get Tamron SP 15-30mm f/2.8 Di VC USD Lens at B&H Photo
The Nikon 14-24/2.8G focus shift makes it virtually impossible to match the zone of focus across the aperture series, so this comparison present the Tamron 15-30 against two series with the Nikon 14-24, one focus a bit closer to show how compensation for focus shift can help. It is thus not only a comparison, but a tutorial on mitigating focus shift (by compensating by using a focus bias).
Presented with large images and crops as usual.