Review - Canon EF 16-35mm f/2.8L USM by David Tong
Image Courtesy of Wikipedia.org
Important: This is the original Canon EF 16-35mm f/2.8L USM (released 2001) and has been replaced by a Mark II version last 2007. While there are significant optical differences between the two, they are more similar than different for the most part, so most parts of the review may still be useful to those considering the Mark II version.
From Wikipedia:
Type: Zoom
Focal length: 16-35mm
Frame coverage: Full frame
Aperture (max/min): f/2.8 - f/22
Construction: 10 groups / 14 elements
# Diaphragm blades: 7
Close focus distance: 280mm
Max. magnification: 0.22
Physical
Max. diameter: 83.5mm
Max. length: 103 mm
Weight: 600 g
Filter diameter: 77mm
Accessories
Lens hood: EW-83E
Angle of view
Horizontal: 98° – 54°
Vertical: 74°10′ – 38°
Diagonal: 108°10′ – 63°
The Canon EF 16-35mm f/2.8L USM replaced the (even) older EF 17-35mm f/2.8L USM and it was a big upgrade from every standpoint. The 1mm may not sound much but on a full frame camera, wide angle differences are larger than telephoto lenses in field of view.
read the rest of the review