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

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.