| 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: | 880gram |
| 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.
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