Canon EF 16-35mm f/2.8 L III USM

Professional Ultra-Wide Angle Zoom Lens for EOS DSLRs

Overview

The Canon EF 16-35mm f/2.8L III USM is a professional-grade ultra-wide-angle zoom lens designed for Canon EOS DSLR cameras. As part of Canon's prestigious L-series, this lens delivers exceptional image quality, robust build, and advanced features, making it ideal for landscape, architecture, and event photography.

Key Features

Ultra-Wide Zoom Range

• 16-35mm Focal Length: Provides a versatile wide-angle zoom range, perfect for capturing expansive landscapes, architecture, and tight interiors.
• Constant f/2.8 Aperture: Ensures consistent exposure settings throughout the zoom range, allowing for excellent low-light performance and depth-of-field control.

Superior Optical Performance

• Advanced Optical Design: Features 16 elements in 11 groups, including two large-diameter double-surface aspherical elements and one ground aspherical element, along with two UD (Ultra-low Dispersion) elements to minimize aberrations and distortions.
• Subwavelength Coating (SWC) and Air Sphere Coating (ASC): Reduces flare and ghosting, enhancing contrast and clarity even in challenging lighting conditions.

Fast and Accurate Autofocus

• Ring-Type USM (Ultrasonic Motor): Provides fast, precise, and quiet autofocus performance, ideal for both still photography and video recording.
• Full-Time Manual Focus: Allows manual focus adjustments even in AF mode, providing greater control over focusing.

Specifications

• Model: Canon EF 16-35mm f/2.8L III USM
• Mount Type: Canon EF mount (Full-Frame and APS-C)
• Focal Length: 16-35mm
• Maximum Aperture: f/2.8
• Minimum Aperture: f/22
• Lens Elements/Groups: 16 elements in 11 groups
• Diaphragm Blades: 9, rounded
• Minimum Focus Distance: 0.28 m (0.92 ft)
• Maximum Magnification: 0.22x
• Filter Diameter: 82mm
• Dimensions: 88.5 x 127.5 mm (3.5 x 5.0 in)
• Weight: 790 g (1.74 lbs)

Additional Benefits

Professional Build Quality

• L-Series Durability: Part of Canon’s professional L-series, known for its superior build quality and performance.
• Weather-Sealed Design: Dust and moisture-resistant construction ensures reliability in challenging environments.
• Fluorine Coating: Applied to the front and rear elements to resist fingerprints, dust, water, oil, and other contaminants, making it easier to keep clean.

Enhanced Control and Usability

• Manual Focus Override: Full-time manual focus allows for precise focus adjustments even when AF is engaged.
• Robust and Ergonomic Design: Designed for professional use, ensuring durability and ease of handling.