
This lens is an EF 16-35mmf/2.8L USM.
Features
Three types of aspherical elements
Highly resistant to dust and water droplets
Inner focusing and ring USM for silent and high-speed AF operation
Drop-in, gelatin filter holder provided at the rear
Circular diaphragm for better background blur.
To meet the growing demand of digital SLR owners, this ultra-wide-angle
zoom offers a broader view, fast aperture, and closer focusing
Developed to succeed the high-performance 17-35mm f/2.8L USM, the EF
16-35mmf/2.8L USM has the leading wide-angle range in its class. Due to
the proliferation of digital SLR Camera’s that tend to have a smaller
frame size when compared to the 35mm,there is a demand for shorter focal
length lenses, and this has resulted in the development of the EF
16-35mmf/2.8L USM. This is the first EF lens to have three types of
aspherical elements (ground, replicated and Gmo [glass molded] which
effectively correct the lens aberrations which occur during zooming. And
despite its longer zoom range the EF16-35mm f/2.8L USM obtains a higher
image quality than any other lens in its class.
Photo Quote: Let us first say what photography is not. A photograph is not a painting, a poem, a symphony, a dance. It is not just a pretty picture, not an exercise in contortionist techniques and sheer print quality. It is or should be a significant document, a pene- trating statement, which can be described in a very simple term - selectivity. - Berenice Abbott