EF 17-40mm Photo by http://www.the-digital-picture.com/
The EF 17-40mm f/4L USM lens is a wide-angle lens made by Canon.
The lens has an EF mount to work with the EOS line of cameras.
Specifications[]
| Attribute | F/4L |
|---|---|
| Image stabilizer | No |
| Ultrasonic Motor | Yes |
| L-series | Yes |
| Diffractive Optics | No |
| Macro | No |
| Maximum aperture | f/4 |
| Minimum aperture | f/22 |
| Weight | 475g |
| Diameter | 83.5 mm |
| Length | 96.8 mm |
| Filter diameter | 77 mm |
| Horizontal viewing angle | 93° – 49° (36mm) |
| Diagonal viewing angle | 104° – 57° (43.2mm) |
| Groups/elements | 9/12 |
| # of diaphragm blades | 7 (circular aperture) |
| Closest focusing distance | 0.28 m |
| MSRP ($) | $850 |
Reviews[]
Links[]
- This article contains information originally taken from the Wikipedia article "Canon_EF_17-40mm_lens". You can see the authorship and revision history of that article here.
- At canon's website:
- At dpreview.com:
- At fredmiranda.com: