Canon EF 14mm f/2.8L II USM Lens reviewed by slrlensreview

Canon EF 14mm f/2.8L II USM is currently the widest rectilinear prime lens manufactured by Canon. The EF-S 10-20mm f/3.5-4.5 USM offers an even wider angle of view, but is an EF-S lens that can be mounted only on APS-C cameras like Canon Digital Rebel series, Canon 30D and Canon 40D. The lens was first announced in August 2007 and replaces the first generation 14mm prime, which was manufactured by Canon for over a decade. The lens sells for ~US$1,900 (as of December 2008), which obviously makes it rather unaffordable for mainstream users.

Summary
Lens Composition	14 elements in 11 groups
Angular Field	114 degrees
Minimum Focus	20cm/7.9in
Focusing Action	AF/MF, USM
f-stop Scale	f/2.8-f/22, camera-controlled
Filter Size	Gel filters only
Lens Hood	Built-in, petal-shaped
Weight	645g/22.8oz
Dimensions	80x94mm/3.2x3.7"
Lens Case	LP1016 (included)

Read the full review here.