The EF 20–35mm lens is a wide-angle lens made by Canon Inc., with an EF mount. There are two models, an L-series 2.8L and a consumer-grade 3.5–4.5.
Table Attribute 2.8L 3.5–4.5 Image Key features Image stabilizer No Environmental Sealing No USM No Yes L-series Yes No Diffractive Optics NoTechnical data Maximum aperture 2.8 3.5–4.5 Minimum aperture 32 22–27 Filter diameter 72 mm 77 mm Horizontal viewing angle Vertical viewing angle Diagonal viewing anglePhysical data Weight 570 g 340 g Max. Diameter x Length 89 mm x 79.2 mm 83.5 mm x 68.9 mm Groups/elements 12/15 11/12 # of diaphragm blades 8 5 Closest focusing distance 0.5 m 0.34 mRetail information Release date October 1989 March 1993 MSRP ¥ ¥190,700 ¥77,000
Successor lenses The 20-35mm lens was followed by two other L-series ultra-wide lenses: EF 17–35mm 2.8L EF 16–35mm 2.8L USM The EF 17–40mm 4L USM is another wide-angle lens that has a similar focal range
References
External links