My husband received a great gift for his birthday from his brother. It is a Canon ef17-40mm lens, a high performance wide angle lens. It is pricey, so it would be for someone who is really serious about photography.
The lens has an ultrasonic motor for quiet operation, two aspherical elements and a Super UD element which allows you to take sharp pictures. It has a sealed construction which protects from dust and water. It is dust and water-resistant, but you must attach a filter to the front of the lens to give it complete protection.
My husband really likes this lens. When we take wedding pictures, a wide angle lens is needed for larger group shots. This lens is great for that purpose. It would also be great for nature photos and scenery. The colors are vivid and crisp, plus my husband has found no discernible distortion with this lens. Photos come out clear, sharp, and beautiful.
This lens definitely gets a thumbs up from my husband. He is the one who will be using it most of the time, and he is very happy with it. For wide angle shots, this is the way to go, if you can afford it. Price varies from around $500 for a used lens up to $700-$1200.00 for a brand new lens.