This is the first EF-S pancake lens with a versatile focal length equivalent to 38mm in 35mm format. Weighing only about 125g, it's lightweight and compact, making you hardly notice it's attached to your camera, and easy to carry anywhere. With its natural angle of view, it excels in various types of photography, including snapshots, portraits, and landscapes. The use of aspherical lenses ensures high image quality across the entire frame. I've only used it about 5 times since I bought it. I will not be lowering the price any further. Aperture: 2.1-2.8