Canon L II 16-35mm f/2.8 with dramatically improved corners, professional ultra-wide at moderate savings vs L III.
The Canon EF 16-35mm f/2.8L II USM is the improved second generation of Canon's professional ultra-wide zoom with dramatically better corner sharpness than the original. The L II provides reference-grade wide-angle zoom quality with constant f/2.8, weather sealing, and ring-type USM.
The L II substantially improved corner and edge sharpness over the original L, making it the reference Canon ultra-wide zoom until the L III arrived. The constant f/2.8, L-series build, and ring-type USM provide professional capability for architectural, landscape, and astrophotography.
Build quality is Canon L-series professional with full weather sealing and the robust construction expected for demanding professional use. The improved optics make the L II significantly more capable than the original for critical edge-to-edge sharpness.
The Canon EF 16-35mm f/2.8L II offers significantly improved professional ultra-wide at moderate savings versus the L III on the used market. The improved corners make it a genuinely capable reference wide-angle zoom.