Original Canon L-series 16-35mm f/2.8, professional ultra-wide zoom at excellent used pricing below newer versions.
The Canon EF 16-35mm f/2.8L is the first-generation L-series fast wide zoom for full-frame Canon cameras. Canon EF mount.
16-35mm focal length. f/2.8 constant maximum aperture. L-series optical quality. Full-frame coverage. 82mm filter thread. Canon EF mount.
The EF 16-35mm f/2.8L (first version) was the professional wide-angle zoom reference for Canon. The 16-35mm f/2.8L II (id 3234) updated the optical formula with improved corner sharpness. The original has characteristic corner softness at f/2.8. Still useful for available-light wide-angle work where the f/2.8 aperture matters more than corner resolution.
On the used market the Canon EF 16-35mm f/2.8L is a vintage L-series wide zoom. Condition checks: f/2.8 element quality (corner performance), AF, L-series seals. Canon EF mount.