Loading...
Canon EF 17-40mm f/4.0L

View larger image

Canon EF 17-40mm F4.0 L USM

CODE: LENS-CAN1740F4L


Price: $1,049.95

In stock

 

Description

A new and affordable L-series ultra-wide-angle zoom lens that's ideal for both film and digital SLRs. Superior optics are assured by the use of three aspherical lens elements, in addition to a Super UD (Ultra-low Dispersion) glass element. Optical coatings are optimized for use with digital cameras. This lens focuses as close as 11 inches (0.28m), and offers both Canon's full-time manual focus and a powerful ring-type USM for fast and silent AF. It has a constant f/4 maximum aperture, and offers the choice of screw-in 77mm filters or a holder in the rear of the lens for up to three gel filters. Finally, it offers weather-resistant construction similar to other high-end L-series lenses.
  • Ultra-wide high performance zoom lens offering excellent image quality
  • Dust-proof and moisture-proof construction
  • Rear focusing and ring USM for silence and high-speed AF
  • 2 UD and 3 types of aspherical elements reducing chromatic aberration of magnification and providing superb image quality
  • Non-rotating front element during focus
Pros:
  • Size
  • Weight
  • L series quality
  • Good performance on a full-frame sensor
  • Color
  • Contrast
  • Sharpness
  • Good for FF body, outdoor photography, landscape, events
Cons:
  • Softness in the corners on wide end
  • Not weather sealed in front

Canon EF 17-40mm f/4.0L USM Lens

WARRANTY INFORMATION

This product is covered by 12 month Canon International Warranty.


Canon L Series

An L lens is a line of SLR photography lenses made by Canon. L lenses are Canon's top-of-the-line lenses. The "L" officially stands for "Luxury", a reference to the lenses' high price and build.

L-lenses have superior optical performance and are typically built with a solid construction to withstand constant use and harsh conditions. They can be recognized by a red ring around the front part of the lens. Most recent L lenses have sealing to help resist dust and water. L-lenses are typically used by professionals and serious amateurs due to their high price and large mass.

Most L series lenses share a number of common characteristics:

  • Tough build, made to withstand the trials on the fields (some incorporating dust and moisture resistant rubber seals).
  • At least one fluorite or ultra-low dispersion glass element, combined with super-low dispersion glass and ground aspherical elements.
  • Non-rotating front elements, which are optimal for some filters (e.g. circular polarizers).
  • Relatively large apertures compared to other Canon lenses in the same focal lengths.
  • Where included, true ring-type USM (ultrasonic motor) and full-time manual focusing.
  • Three additional data communication pins on Canon Extender EF compatible lenses, compared to the standard EF mount.

Parse error: syntax error, unexpected T_STRING, expecting ')' in /home/hightech/public_html/var/cache/cache_update_handlers.php on line 302