This new lens does what many pros thought couldn't be done - replace the previous L-series 28-70mm f/2.8 lens with something even better. Extended coverage to an ultra-wide-angle 24mm makes it ideal for digital as well as film shooters, and the optics are even better than before with two Aspherical elements and a totally new UD glass element. It's now sealed and gasketed against dust and moisture, and a new processing unit makes the AF faster than ever.
| Focal Length | 24mm – 70mm |
| Aperture | Maximum: ƒ2.8 Minimum: ƒ22 |
| Angle of View | 34° – 84° |
| Lens Construction | 16 elements in 13 groups |
| Diaphragm Blades | 8 |
| Minimum Focusing Distance | 38.1cm (1.25') |
| Features | |
| Filter Size | 77mm |
| Autofocus Type | Front-focusing method, Rotating Type |
| Dimensions | |
| Dimensions (Length by Width) | 124mm x 83mm (4.88" x 3.27") |
| Weight | 950g (2.09 lb) |
