Ranging from 11mm to 20mm, lenses in this focal length range (when used on a full frame camera) produce an extremely wide field of view, going beyond the human perspective. They're perfect for exaggerating the distance between foreground and background and giving a vast expression of the space in front of the camera. Ultra-wide lenses are very effective at filling the frame with grand architecture and interiors.
Ranging from 24mm to 35mm, lenses that cover the standard wide-angle range still give you a wide field of view, but with less exaggerated perspective when compared with the ultra-wide range. This range suits tighter compositions and is useful when you do not want your background to shrink from the foreground.
Using a longer focal length can bring elements of your composition closer together, flattening the perspective and compressing the scale of the scene, giving the impression that the foreground and background are closer together. When you're working with layered scenic elements; such as forests with mountains and sun, this technique can give a dramatic effect. Anything beyond 85mm is generally considered to be telephoto.
Circular perspective may feel like a leap of faith, but the 180° wide field of view of the lens can make a style statement and present an excellent slant on a typical landscape. You might choose one for its distinct overall style, due to the hemispherical look it can give.
One of Canon’s famous L Series lenses, this professional ultra-wide angle zoom lens has an impressive range at 11-24mm with minimal distortion, even at it’s widest focal length. Its durable weathersealed design makes it resistant to dust and water and ideal for shooting in harsh conditions. It’s 9-blade circular aperture creates beautiful, blurred backgrounds.