Do you have a question about the Canon EF300mm F2.8L IS USM and is the answer not in the manual?
Step-by-step guide to saving a focus position into the lens's memory for quick recall.
Instructions on how to retrieve a previously stored focus position using the focus recall ring.
Guide to setting the image stabilizer switch to ON and selecting between MODE 1 and MODE 2.
Details conditions where MODE 1 and MODE 2 are most effective for hand-held shooting.
Notes on tripod use, bulb settings, compatibility, and potential errors with image stabilizer.
Information on using IS with extension tubes, custom functions, and the infinity distance mark.
Important notes on focus modes, camera compatibility, and exposure compensation when using extenders.
Detailed technical specifications including focal length, aperture, dimensions, and weight for two lenses.
Detailed technical specifications including focal length, aperture, dimensions, and weight for two lenses.