Canon EF 28-70mm f/2.8L lens


Canon EF 28-70mm f/2.8L lens

Infobox photographic lenses
name = EF 28-70mm f/2.8L



maker = Canon
feat-is = n
feat-usm = y
feat-sbf = n
feat-macro = n
feat-special =
type = z
application = Pro Standard Zoom
flength = 28-70mm
fov =
aperture = f/2.8 - f/22
groups = 11
elements = 16
diaphragm = 8
close-dist = 0.5
max-mag = 0.18
weight = 880
max-diameter = 83.2
max-length = 117.6
filter = 77mm
hood = EW-83B
av-horiz =
av-vert =
av-diag =
start = November 1993
msrp =
category = Canon EF lenses
The Canon EF 28-70mm f/2.8L was an EF mount wide-to-normal zoom lens made by Canon from 1993 to 2002. It was discontinued in 2002 and replaced by the 24-70mm f/2.8L.

Among zoom lenses, it is known for excellent contrast, color rendition and sharpness, and it is widely considered to be one of the finest wide-to-normal zoom lenses ever produced. Like other zoom lenses, it exhibits some barrel distortion at the wide end of its range.

A unique aspect of the 28-70mm f/2.8L (and 24-70mm f/2.8L) is that its barrel extends as it zooms toward its shortest focal length. When used with the supplied "petaled" lens hood, which attaches to a non-moving part of the lens, this extension results in a properly matched shade at every angle of view. Most zoom lens hoods are designed for only the widest angle of view, offering progressively inadequate shade at longer focal lengths.

Canon Standard Zoom Series

* Canon EF 28-135mm f/3.5-5.6 IS USM
* Canon EF 17-40mm f/4L USM
* Canon EF 24-105mm f/4 IS USM

ources

* [http://www.canon.com/camera-museum/camera/lens/ef/data/ef_28~70_28l_usm.html Canon Camera Museum]
* [http://www.canon-europe.com/For_Home/Product_Finder/Cameras/EF_Lenses/Zoom_Lenses/EF_2870mm_f28L_USM]
* [http://www.dpreview.com/news/0209/02092906canonef2470l.asp]


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