Canon RF 100-300mm f/2.8L IS USM Lens Firmware Version 1.0.8. Canon has released firmware version 1.0.8 for the Canon RF 100-300mm f/2.8L IS USM. This update imoproves tracking performance for both photography and videography applications.
Canon also fixed an issue that lead to Err 60 related to the sleep state of the camera.
The US price for this lens is $9,499 and can be purchased from B&HPhoto/Adorama/Amazon.
Firmware Version 1.0.8 incorporates the following fixes and enhancements:
- Improves AF tracking performance during zoom operations in still photography when used with specific cameras*1. Enhances smoothness of AF tracking during zoom operations in video recording. *1 Applicable cameras (as of February 20, 2025): EOS R1/EOS R5 Mark II If the lens’s firmware is already version 1.0.9, it is not necessary to update the firmware.
- Fixes an issue that, in rare instances, may cause Err 60 to occur when the camera is turned on or resumes operation from the [Auto Power Off] state.
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Canon RF 100-300mm f/2.8L IS USM Lens Overview
- Full-Frame | f/2.8 to f/22
- Fast L-Series Telephoto Zoom
- Dual Nano USM AF System
- 5.5-Stop Image Stabilization
- Floating Focus Design
- Internal Zoom and Focusing Design
- Function/Focus Preset Selector Switch
- Fluorite, UD, and Aspherical Elements
- ASC, SSC, and Fluorine Coatings
- Weather-Sealed Design
Building on the legacy of the popular EF 300mm f/2.8 prime lenses, this RF 100-300mm f/2.8 maintains the quality and speed 300mm f/2.8 shooters are looking for while adding the versatility of a zoom that widens up to 100mm.
- 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.
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