What are the key differences between the Canon 70-200 and the Canon 70-300 lenses, and which one would be more suitable for my photography needs?

The key differences between the Canon 70-200 and the Canon 70-300 lenses are their focal lengths and maximum apertures. The Canon 70-200 has a constant maximum aperture of f/2.8 throughout its zoom range, while the Canon 70-300 has a variable maximum aperture of f/4-5.6. The Canon 70-200 is better suited for low-light conditions and professional Photography due to its wider aperture, while the Canon 70-300 is more versatile for everyday use and offers a longer zoom range. Your choice should depend on your specific photography needs, with the Canon 70-200 being ideal for portraits, sports, and events, and the Canon 70-300 being suitable for general photography and travel.