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The EF 17-40mm f/4L USM is an ultra wide-angle zoom lens that offers excellent image quality and a constant maximum aperture. Its compact, lightweight body makes it an ideal travelling companion.
Take a look at a more detailed look into the Canon EF 17-40mm f/4L USM
The EF 17-40mm f/4L USM acts as an ultra-wide angle zoom on film or full-frame digital EOS cameras. On DSLRs equipped with APS-C sized sensors it acts as a standard zoom, giving an angle of view equivalent to a 28-70mm lens on a full-frame camera.
Minimum focusing distance is just 28cm throughout the entire zoom range.
The EF17-40mm f/4L USM has 12 lens elements arranged in nine groups. Super Spectra coating ensures excellent colour balance and minimises ghosting and flare. To provide superb image quality over the complete 17-40mm zoom range the lens uses three aspheric elements. Super UD (Ultra-low Dispersion) glass prevents chromatic aberrations.
A ring-type ultrasonic motor drives autofocus extremely quickly, and in near silence. Excellent holding torque ensures the point of focus is reached accurately, without overshooting. Furthermore, full-time manual override is available, making it possible to adjust focus without leaving AF mode.
The front of the lens does not rotate, which makes using specialised filters, such as polarisers and graduates, easier. A drop-in gelatine-filter holder can be found at the back of the lens.
A virtually circular aperture diaphragm gives out of focus regions a softer, more uniform feel. Sharp foreground objects stand out against a smooth blurred background.
Highly resistant to moisture and dust, the EF17-40mm f/4L USM is ideally suited for use in harsh environments. Environment friendly lead-free glass is used throughout its construction.
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Upon placing an order, we provide estimated shipping and delivery dates tailored to your item's availability and selected product options. For precise shipping details, kindly reach out to us through the contact information listed in our Contact Us section.
Please be aware that shipping rates may vary depending on the destination.
We operate a 3-day exchange policy, granting you 3 days from receipt of your item to initiate an exchange.
To qualify for an exchange, your item must remain in its original condition, unworn or unused, with tags intact, and in its original unsealed packaging. Additionally, you will need to provide a receipt or proof of purchase.
To initiate an exchange, please contact us at admin@961souq.com. Upon approval of your exchange request, we will furnish you with an exchange shipping label along with comprehensive instructions for package return. Please note that exchanges initiated without prior authorization will not be accepted.
Should you encounter any damages or issues upon receiving your order, please inspect the item immediately and notify us promptly. We will swiftly address any defects, damages, or incorrect shipments to ensure your satisfaction.
Certain items are exempt from our exchange policy, including perishable goods (such as headsets, earphones, and network card wifi routers), custom-made products (such as special orders or personalized items), and pre-ordered goods. Additionally, we cannot accept exchanges for hazardous materials, flammable liquids, or gases. For queries regarding specific items, please reach out to us.
Unfortunately, we are unable to accommodate exchanges for sale items or gift cards.
The most efficient method to secure the item you desire is to exchange the original item, and upon acceptance of your exchange, proceed with a separate purchase for the desired replacement.
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