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Canon EF 17-40mm USM
- Aperture Range: f/4-22
- Three Aspherical Elements, One Super UD
- Ultrasonic Autofocus Motor
- Manual Focus Override
- Water and Dust Resistant
- Internal Zooming and Focusing
- Truly Circular Diaphragm
- 77mm Front Filter Diameter
- Rear Holder for Three Gel Filters
Richard CanonNews
Richard has been using Canon cameras since the 1990s, with his first being the now legendary EOS-3. Since then, Richard has continued to use Canon cameras and now focuses mostly on infrared photography. Richard is the founder and editor of CanonNews since 2017, and has worked as a writer on CanonRumors and other websites in the past.
Other posts by Richard CanonNews
| Lens Mount | EF |
| Lens Category | Wideangle Zooms |
| Launch Date | 2/27/2003 |
| Launch Year | 2003 |
| Weathersealing | |
| Filter Thread | 77 |
| Rear Filter | |
| Diameter (mm) | 84 |
| Length (mm) | 97 |
| Weight (g) | 500 |
| Min. Focal Length | 17 |
| Max Focal Length | 40 |
| Maximum Aperature | 4.00 |
| Min. Aperture | 22.00 |
| Min Focus Distance | 0.28 |
| No of Element Groups | 9 |
| No of Elements | 12 |
| Diaphragm Blades | 7 |
| Launch Price | $799.00 |
| Amazon | amzn.to/2iHUYLt |
| Canon USA | bit.ly/2ie4RNf |
| Canon USA Refurbished | bit.ly/2ie51nP |
| B&H PhotoVideo | bit.ly/2AF5uI6 |
| Adorama | bit.ly/2AEbJMq |
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