Canon EF 24mm f/2.8 IS USM Wide-Angle Lens: This compact lens provides excellent image quality for both stills and video. Suitable for landscape and travel photographers, photojournalists and anyone wanting to capture that perfect wide shot. It offers whisper-quiet operation, fast focusing and image stabilization to capture crisp and clear shots, even in low light.
This lens is amazing for wide angle shots! I use this lens for landscapes and city scapes on my Canon 7D, and the pictures come out amazing! The lens is best used at about f 8 - f 11