The Tokina AT-X 17-35mm f/4 PRO FX is a versatile ultra wide-angle zoom lens engineered for Nikon full-frame DSLR cameras. This compact and reliable optic delivers a spectacular 103.9-degree field of view at the 17mm end, making it excellent for landscape, architectural, and environmental photography in tight spaces. The constant f/4 aperture enables shooting in low-light conditions whilst maintaining a manageable size and weight. An advanced optical design featuring two Super-Low Dispersion glass elements and one aspheric element produces superior contrast and sharpness while controlling chromatic aberration. The One-Touch Focus Clutch Mechanism allows seamless switching between autofocus and manual focus, and improved seals provide water-resistant performance for shooting in damp conditions. This secondhand example offers excellent value for photographers seeking a dependable wide-angle option for their Nikon system.