The Canon EF 17-40mm F4L USM is a high-quality, professional-grade wide-angle zoom lens. It allows you to enjoy a wide range of image expression, covering everything from dramatic ultra-wide scenes at 17mm to standard perspectives at 40mm. This lens is an essential tool for tourists in Japan who wish to capture grand architectural sights, vast landscapes, and immersive cityscapes.
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Contact Jasumo Now →Utilizing three aspherical lenses and a Super UD element, this L-series lens effectively corrects various aberrations, delivering the sharp, high-quality images and durability expected of a professional optic. Its constant F4 maximum aperture ensures consistent performance, and its robust dust and water-resistant construction makes it highly reliable for travel in any weather.
This lens is beloved by travel and landscape photographers for its balance of wide-angle capability, light weight (475g), and professional optical performance. It provides maximum flexibility for shooting large scenes in Japan, from the expansive views of Hokkaido to the intricate details of city centers.
The Canon EF 17-40mm F4L USM boasts a high-quality optical construction with 12 elements in 9 groups. The inclusion of specialized glass elements, such as the Super UD lens, ensures excellent correction of chromatic aberration, resulting in crisp, high-contrast photos across the entire zoom range.
Its fast and quiet USM (Ultrasonic Motor) delivers quick autofocus, complemented by full-time manual focus for precise adjustments. The lens offers excellent operability with a fixed length and a non-rotating filter frame, simplifying the use of polarizing or graduated filters—a must for landscape photographers. Furthermore, its rugged dust and water resistance ensure reliability when faced with Japan’s varying climates.
| Feature | Specification |
| Lens Mount | Canon EF (Full-frame compatible) |
| Lens Construction | 12 elements in 9 groups |
| Shooting Distance Range | 0.28 meters to infinity |
| Maximum Magnification | 0.24 times |
| Filter Diameter | 77 millimeters |
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The 17mm setting provides a dramatic, ultra-wide view perfect for fitting entire buildings or wide landscapes into the frame. Zooming to 40mm provides a near-standard perspective, ideal for travel snapshots, small scenes, or street photography, making it an excellent all-purpose wide-angle lens.
Yes, this EF lens is fully compatible with both full-frame and APS-C Canon DSLRs. On a full-frame camera, it acts as a true wide-angle lens. On an APS-C camera, its effective focal length is roughly 27mm to 64mm, making it a very useful standard walk-around zoom.
While F4 is not as bright as F2.8, it is consistent, which aids workflow. In most low-light situations (like evening cityscapes), the use of a tripod or steady surface, combined with the camera’s ability to handle high ISOs, makes F4 more than adequate for sharp results.
As a durable L-series lens, the weather sealing protects against light rain, humidity, and dust. This is valuable in Japan, where tourists might encounter sudden rain showers, high humidity, or dusty temple grounds, ensuring the lens remains safe and functional.
The filter thread remains stationary when focusing or zooming. This is critical when using polarizing filters (which need to be precisely aligned to achieve their effect) or graduated neutral density filters, ensuring your filter alignment is not disturbed during composition.
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