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Black Canon L-series zoom lens with red ring, bundled with 77mm filters, cap keeper and cleaning kit

Canon

Canon EF 17-40mm f/4L USM Lens Starter Bundle

SKU CH-J5KT-YJHJN

Wide-angle zoom lens with constant f/4 aperture plus 77mm filter kit, cap keeper and cleaning kit for full-frame and APS-C DSLRs

  • TypeZoom Lens
  • CompatibilityDSLR Camera
  • ColorStarter Bundle
  • Constant f/4 aperture keeps exposure steady across the 17-40mm zoom range
  • One Super UD and three aspherical elements reduce chromatic and spherical aberrations
  • Ring-type USM with internal focusing delivers quick, quiet autofocus and full-time manual override
  • Weather-sealed L-series construction protects the lens in harsh environmental conditions
  • Bundle adds 77mm filter kit, cap keeper and cleaning kit for immediate use

Wide-Angle Zoom Bundle

This starter bundle centres on the Canon EF 17-40mm f/4L USM zoom lens and adds a 77mm three-piece filter kit, a lens cap keeper and a cleaning kit. The lens covers a versatile 17-40mm range on full-frame DSLRs and a 27.2-64mm equivalent on APS-C bodies. It is aimed at photographers who want a single wide-angle zoom with a constant aperture for landscapes, architecture and reportage.

L-Series Build and Mounting

The lens uses Canon L-series construction with weather sealing for use in trying environmental conditions. A ring-type USM and internal focusing deliver quick, quiet autofocus with full-time manual override. The 77mm filter thread accepts the included filters without vignetting, while the supplied EW-83E hood and LP1319 case protect the front element and simplify transport. A rear dust cap and front lens cap are also provided.

Constant f/4 Aperture

The constant f/4 maximum aperture maintains consistent illumination throughout the zoom range, which is the single specification that decides whether this lens suits a buyer who needs predictable exposure when zooming. Optical design includes one Super UD element and three aspherical elements to reduce chromatic and spherical aberrations, while Super Spectra coating suppresses flare and ghosting. Buyers who need a faster maximum aperture such as f/2.8 for low-light event work should look elsewhere.

Highlights

  • Constant f/4 aperture keeps exposure steady across the 17-40mm zoom range
  • One Super UD and three aspherical elements reduce chromatic and spherical aberrations
  • Ring-type USM with internal focusing delivers quick, quiet autofocus and full-time manual override
  • Weather-sealed L-series construction protects the lens in harsh environmental conditions
  • Bundle adds 77mm filter kit, cap keeper and cleaning kit for immediate use

Specifications

TypeZoom Lens
CompatibilityDSLR Camera
ColorStarter Bundle
BrandCanon

Questions about this item

What lens mount does the EF 17-40mm f/4L USM use and which sensor sizes does it cover?

The lens uses the Canon EF mount and covers full-frame sensors; on APS-C bodies it gives a 27.2-64mm equivalent focal length range.

What filter thread diameter does the lens have and which hood is included in the box?

The lens takes 77mm filters and the bundle includes the EW-83E hood designed for the EF 16-35mm f/2.8L and 10-22mm EF-S lenses.

How do you attach the supplied lens cap keeper without losing the cap?

Loop the keeper's elastic band around the 77mm filter or hood bayonet, then press the adhesive base onto the cap so the cap stays tethered when removed.

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