L-Series Lenses Canon L-series lenses are top quality pieces throughout the line. They typically have wide apertures (fixed throughout the zoom range for most L zoom lenses) and a rugged build quality.
EF Lenses Canon EF Standard Lenses most closely reflect your own vision making them ideal for accurately capturing photographs that match the way you see your subject. The other advantage of EF Standard Lenses is the large aperture lens design that makes it possible to capture images in lower light and shallow depth-of-field, which is ideal for portraiture.