The EF 16‎-35mm f/2.8L II USM Lens from Canon is a high performance‎,‎ water‎-resistant‎,‎ ultra wide‎-angle L‎-series zoom lens‎.‎ An f/2.8 maximum aperture is effective in low light situations and offers shallow depth of field focus control‎.‎ The optical design has been improved to offer better edge‎-to‎-edge image quality‎.‎a In addition‎,‎ it features 3 high‎-precision aspherical lens elements‎,‎ each of a different type‎:‎ ground‎,‎ replica and GMo‎.‎ Its ultrasonic motor ‎(‎USM‎)‎ and improved AF algorithms will help the lens to focus faster and quieter‎.‎ Precise manual focus is supported even in One Shot AF mode and a truly round aperture results in pleasing background blur‎.‎

All of the ‎"‎L‎"‎ lenses deliver optical performance equal to similar fixed focal lengths lenses and provide tight seal structures for dust and water resistance‎.‎ Distortions and aberrations are remarkably small for a lens of such amazing capabilities‎.‎ An included petal‎-style lens hood keeps unwanted light from entering the lens and causing flare and it offers a degree of protection against impact and the elements‎.‎

• Ultra‎-low dispersion glass and three high‎-precision aspherical lens elements‎,‎ each of a different type‎:‎ ground‎,‎ replica and GMo minimize aberrations and improve overall image quality‎.‎
• A ring‎-type Ultrasonic motor ‎(‎USM‎)‎ provides quiet‎,‎ fast‎,‎ precision auto focusing and predictive tracking‎.‎
• Full‎-time manual focus override ‎(‎even in AF mode‎)‎ is supported‎.‎
• Circular aperture diaphragm produces brilliant out‎-of‎-focus characteristics‎.‎
• A petal‎-type lens hood is included‎.‎

Technical Specifications‎:‎

Performance

Focal Length     

• 16 ‎- 35mm

Comparable

• APS‎-C 1.6x Focal Length‎:‎ 25.6 ‎- 56 mm

Aperture            

• Maximum‎:‎ f/2.8
• Minimum‎:‎ f/22

Camera Mount Type     

• Canon EF

Format Compatibility   

• 35mm Film / Full‎-Frame Digital Sensor
• Canon ‎(‎APS‎-C‎)‎

Angle of View  

• 108° 10‎'‎ ‎- 63°

Tilt/Shift             

• None

Minimum Focus Distance           

• 11.2‎"‎ ‎(‎28 cm‎)‎

Magnification  

• 0.22x

Maximum Reproduction Ratio

• 1‎:‎5

Elements/Groups           

• 16/12

Diaphragm Blades          

• 7

Features

Image Stabilization        

• No

Autofocus          

• Yes

Tripod Collar     

• No

Physical

Filter Thread     

• Front‎:‎82 mm

Dimensions ‎(‎DxL‎)‎           

• Approx‎.‎ 3.48 x 4.39‎"‎ ‎(‎88.5 x 111.6 mm‎)‎

Weight

• 1.4 lb ‎(‎635 g‎)‎