Canon RF100-300mm F2.8 L is USM

Canon RF 100-300mm f/ 2.8 L IS USM Lens (Canon RF Variant)
Notable Attributes:
Designed for Full-Frame Cameras
Aperture Range: f/ 2.8 to f/22
Fast and Premium L-Series Telephoto Zoom
Equipped with Dual Nano USM AF System
Impressive 5.5 -Stop Image Stabilization
Incorporates Floating Focus Design
Features Internal Zoom and Focusing Mechanism
Comes with Function/Focus Preset Selector Switch
Boasts Fluorite, UD, and Aspherical Elements
Enhanced with ASC, SSC, and Fluorine Coatings
Engineered with Weather-Sealed Construction
A Remarkable High-Performance Telephoto Zoom Lens
The Canon RF 100-300mm f/ 2.8 L IS USM Lens combines the adaptability of a zoom lens with the extended reach and rapidity of a revered telephoto concept. This makes it an all-encompassing choice for various applications such as indoor sports, events, theater photography, fashion shoots, and other scenarios that benefit from the unique blend of substantial reach, exceptional speed, proficient image stabilization, and swift autofocus.

Evolution in Zoom Technology
Evolving from the legacy of the popular EF 300mm f/ 2.8 prime lenses, the RF 100-300mm f/ 2.8 maintains the sought-after quality and speed demanded by photographers who are accustomed to 300mm f/ 2.8 optics. In addition to these qualities, it introduces the versatility of a zoom that ranges from 100mm to 300mm.

The 100-300mm zoom design offers more versatility for tracking moving subjects, recording candid moments from a distance, and backing off from scenes a bit for a wider frame for more context. Despite switching to a zoom design, this lens retains the a bright and constant f/ 2.8 maximum aperture that excels in available lighting conditions and helps to achieve a shallow depth of field to isolate subjects against a blurred background. Wholly new optical design includes fluorite elements and ultra-low dispersion glass, plus one aspherical element, to achieve a higher degree of clarity and sharpness with virtually no distortion. Canon's Air Sphere Coating (ASC) and Super Spectra Coating (SSC) minimizes ghosting and flare to better enable working in backlit conditions or when facing strong lighting situations.