The EF 17-40mm f / 4L USM is an ultra-wide angle lens that produces razor-sharp images at a variety of focal lengths. Its compact and lightweight body is perfect for travel. Plus, by letting much of the scene fit back into the frame without the user having to step back, it's perfect for interior, architectural, and landscape photography. It is capable of producing constant exposures thanks to its large f / 4 aperture over a zoom range of 17-40mm and creating subtle background blurring thanks to its 7-blade circular aperture diaphragm. Part of Canon's flagship professional L-series range, specially designed for heavy use and resistant to dust and moisture.
Key features:
- Ring AF USM ACTUATOR
- FIELD ANGLE 93 ° - 49 °, 70 ° 30 '- 34 °, 104 ° - 57 ° 30'
- AF ACTUATOR Continuous manual focus
- MINIMUM OPENING 22
- OBJECTIVE STRUCTURE (ELEMENTS / GROUPS) 12/9
- DISTANCE INFORMATION Yes
- MAGNIFICATION 0.24 (at 40mm)
Reference: 8806A007
Canon EF 17-40 mm f/4L USM Zoom Lens
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The EF 17-40mm f / 4L USM is an ultra-wide angle lens that produces razor-sharp images at a variety of focal lengths. Its compact and lightweight body is perfect for travel. Plus, by letting much of the scene fit back into the frame without the user having to step back, it's perfect for interior, architectural, and landscape photography. It is capable of producing constant exposures thanks to its large f / 4 aperture over a zoom range of 17-40mm and creating subtle background blurring thanks to its 7-blade circular aperture diaphragm. Part of Canon's flagship professional L-series range, specially designed for heavy use and resistant to dust and moisture.
Key features:
- Ring AF USM ACTUATOR
- FIELD ANGLE 93 ° - 49 °, 70 ° 30 '- 34 °, 104 ° - 57 ° 30'
- AF ACTUATOR Continuous manual focus
- MINIMUM OPENING 22
- OBJECTIVE STRUCTURE (ELEMENTS / GROUPS) 12/9
- DISTANCE INFORMATION Yes
- MAGNIFICATION...
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- Lens Mount
- EF
- Camera Mount
- EF
- Lens Type
- Wide Angle
- Zoom
- 17-40
- F-STOP
- F:4.0
Capture stunning photographs of architectural structures and boundless landscapes with this ultra-wide angle L-series lens.
Get close to your subjects with a focusing distance of 0.28m over the entire zoom range.
The aspherical element of the lens corrects distortion and ensures that the image is sharp throughout the frame, with a 75-degree angle of view when using full-frame cameras, ideal for shooting portraits and even landscapes.
Use specialized filters, such as polarizing and graduated filters, without problems thanks to the non-rotating lens.
The fixed f / 4 aperture allows you to shoot hand-held and in low light conditions.
Ensure accurate color balance and optimized contrast, as well as reduce flare and ghosting.
Capture the moment with fast and responsive ultrasonic motor (USM) focusing.
The EF 28mm f / 1.8 USM is a compact and affordable lens that doesn't compromise on optical performance.