From Wikipedia, the free encyclopedia
| EF 28-70mm f/2.8L |

|
| Key features |
| Maker: |
Canon |
| Image stabilization: |
No |
| Ultrasonic motor: |
Yes |
| Short back focus: |
No |
| Macro capable: |
No |
| Application: |
Pro Standard Zoom |
| Technical data |
| Type: |
Zoom |
| Focal length: |
28-70mm |
| Aperture (max/min): |
f/2.8 - f/22 |
| Construction: |
11 groups / 16 elements |
| # Diaphragm blades: |
8 |
| Close focus distance: |
0.5 |
| Max. magnification: |
0.18 |
| Physical |
| Max. diameter: |
83.2 |
| Max. length: |
117.6 |
| Weight: |
880 |
| Filter diameter: |
77mm |
| Accessories |
| Lens hood: |
EW-83B |
| Angle of view |
| History |
| Introduced: |
November 1993 |
| Retail info |
The Canon EF 28-70mm f/2.8L is 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 many 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.
[edit] Canon Standard Zoom Series
[edit] Sources
|
Canon EF/EF-S lenses |
|
| EF-S Zoom |
|
|
| Ultra-Wide Zoom |
|
|
| Standard Zoom |
|
|
| Telephoto Zoom |
|
|
| Wide-Angle Prime |
|
|
| Standard Prime |
|
|
| Telephoto Prime |
|
|
| Super Telephoto Prime |
|
|
| Distorting lenses |
|
|
| Tilt-shift |
|
|
| Macro |
|
|
| Lens accessories |
|
|
| Discontinued Zoom |
|
|