Canon EF 300mm F/4.0 IS L USM Lens
Shoot high-speed, auto-focused, and blur-free images, using the Canon EF L IS USM camera lens. With a maximum aperture of f/4, this camera captures vibrant and sharp images, even in low-light conditio...
Pros: Very Compact & Well-Built With Real "Ring" USM, Rear Focus, FTM And Good Optics
Cons: In A Perfect World, It Would Be A Stop Faster