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Black zoom lens with silver ring, bundled with 55mm filter, tulip hood, blower, cleaning pen, cloth and starter kit

SIGMA

SIGMA 18-50mm f/2.8 DC DN Contemporary Lens for Canon RF 7PC Bundle

SKU CH-3GRM-3W60Z

APS-C zoom for Canon RF covering 29-80mm equivalent with constant f/2.8 aperture, bundled with 55mm UV filter, tulip hood and cleaning accessories

  • TypeContemporary Lens
  • Constant f/2.8 aperture across 18-50mm zoom for consistent exposure
  • 29-80mm full-frame equivalent covers wide to short telephoto
  • Three aspherical elements plus SLD glass reduce aberrations sharply
  • 8" minimum focus distance enables close-up detail work
  • Seven-piece bundle adds filters, hood and cleaning tools

Wide Standard Zoom for APS-C RF

The Sigma 18-50mm f/2.8 DC DN Contemporary Lens is built for Canon RF-mount crop-sensor mirrorless cameras. It covers a 29-80mm full-frame equivalent range with a constant f/2.8 aperture, suiting photographers and video creators who want a single bright zoom for landscapes, portraits, street, architecture and events. The stepping motor delivers fast, quiet autofocus useful for moving subjects and silent recording. The bundle adds a 55mm UV filter, tulip hood, blower, cleaning pen, microfiber cloth and starter cleaning kit.

Optical Limits of a Compact Constant Aperture

The f/2.8 maximum stays fixed from 18mm to 50mm, yet the lens stops down only to f/22, so extreme depth-of-field control or very long exposures in bright light may need neutral density filters. Minimum focusing distance is 4.8 inches, allowing close-up detail but not true macro magnification. Three aspherical elements and one special low dispersion element correct distortion and chromatic aberration across the zoom, though corner sharpness at wide apertures will follow the physical constraints of a small APS-C design.

Lightweight Build with 55mm Thread and Included

The compact barrel keeps the kit light for all-day carry, and the 55mm front thread accepts the supplied UV filter and tulip hood without vignetting. Filter and hood mount directly, shielding the front element from flare and impact while leaving the cleaning accessories — blower, pen, cloth and starter kit — ready for field maintenance. No tripod collar or weather-sealing details are provided, so the lens is best treated as a fair-weather walkaround tool rather than a ruggedised outdoor optic.

Highlights

  • Constant f/2.8 aperture across 18-50mm zoom for consistent exposure
  • 29-80mm full-frame equivalent covers wide to short telephoto
  • Three aspherical elements plus SLD glass reduce aberrations sharply
  • 8" minimum focus distance enables close-up detail work
  • Seven-piece bundle adds filters, hood and cleaning tools

Specifications

TypeContemporary Lens

Questions about this item

Should I pick the 55 mm filter kit or a different size?

The included UV filter, tulip hood, blower, cleaning pen, cloth and starter kit all use 55 mm threads that match the lens front diameter.

What does the constant f/2.8 aperture give me when shooting?

It holds f/2.8 from 18 mm to 50 mm, so exposure stays consistent while zooming and low-light or shallow-depth work is possible throughout the range.

How does the RF mount and APS-C format affect the focal length I see?

On a Canon RF APS-C body the 18-50 mm zoom delivers a 29-80 mm full-frame equivalent view.

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