Canon EF 17-40mm f4L USM Lens
The EF 17-40mm f/4L USM Lens from Canon is a high quality "L" series wide angle zoom lens for full frame and APS-C size DSLR cameras. It combines one high-precision molded glass aspherical element and two replica aspherical lenses to achieve the extended zoom range, while also correcting for common aberrations that arise during zooming. A Super UD (Ultra-low Dispersion) glass element minimizes the chromatic aberration of magnification which tends to occur with wide-angle lenses, to help eliminate color bleed along the edges of the subject and achieve high image contrast and resolution.
| Brand | Canon | Model | 8806A002 | ||
|---|---|---|---|---|---|
| Colour | Black | Max Format Size (mm) | 35 | ||
| Lens Type: | Zoom Lens | Focal Length (mm) | 40 | ||
| Lens Mount: | Canon EF | (F) Maximum Aperture: | 4.0 | ||
| (F) Minimum Aperture: | 22 | Aperture Ring: | No | ||
| Number of Diaphragm Blades: | 7 | Elements: | 12 | ||
| Groups: | 9 | Minimum Focus (m): | 0.28 | ||
| Maximum Magnification (x): | 0.24 | Autofocus: | Yes | ||
| Motor Type: | Ultrasonic | Filter Thread (mm): | 77 | ||
| Focus Method: | Internal | Distance Scale: | Yes | ||
| DoF Scale: | Yes | Diameter (mm) x Length (mm) | 84 x 97 | ||
| Zoom Method: |
Rotary (extending) |
Hood Product Code: | EW-83E |
