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SIGMA
Sigma 18-50mm f/2.8 DC DN Contemporary Lens for Fujifilm X, Bundle with 55mm Filters
Wide-angle to portrait zoom for Fujifilm X with constant f/2.8 aperture and 55mm filter kit included
- Exceptional sharpness from 1 SLD and 3 aspherical elements
- Constant f/2.8 aperture across the 18-50mm zoom range
- Beautiful bokeh with 7 rounded diaphragm blades
- 27-75mm full-frame equivalent covers landscapes to portraits
- Bundle includes 55mm filter kit, pouch, cleaner and cap tether
Sigma 18-50mm f/2.8 DC DN Contemporary Lens
This constant-aperture zoom covers an 18-50mm focal range on Fujifilm X-mount bodies, delivering a 27-75mm full-frame equivalent field of view. The bundle includes a 55mm filter kit, lens pouch, cleaning supplies, and a cap tether alongside the standard caps, hood, and manual. It suits photographers who want a single lightweight lens for landscapes, portraits, and daily shooting without swapping glass. Buyers who need longer telephoto reach or wider ultra-wide angles will need additional lenses.
Optical construction with 1 SLD and 3 aspherical
One Special Low Dispersion element and three glass-moulded aspherical elements work together to suppress chromatic aberration, distortion, and vignetting across the zoom range. This correction maintains sharpness and clarity from centre to edge even when shooting wide open at f/2.8. The design keeps performance consistent throughout extended shooting sessions rather than only in brief bursts. Photographers who require specialised corrections such as apochromatic performance or floating-element designs will not find those technologies here.
Constant f/2.8 maximum aperture
The aperture stays at f/2.8 from 18mm to 50mm, providing predictable exposure and depth-of-field control while zooming. Seven rounded blades produce smooth, circular bokeh highlights for subject isolation in portraits and street scenes. This single specification determines whether the lens matches a shooter's low-light and creative-blur requirements. Users who need faster maximum apertures such as f/1.8 or f/1.4 for extreme shallow depth of field must consider different optics.
Highlights
- Exceptional sharpness from 1 SLD and 3 aspherical elements
- Constant f/2.8 aperture across the 18-50mm zoom range
- Beautiful bokeh with 7 rounded diaphragm blades
- 27-75mm full-frame equivalent covers landscapes to portraits
- Bundle includes 55mm filter kit, pouch, cleaner and cap tether
Specifications
No published specifications for this item yet.
Questions about this item
How much heat does the Sigma 18-50mm f/2.8 generate during long video shoots?
The lens has no active cooling and relies on passive heat dissipation; extended video recording will warm the barrel, but no thermal throttling or shutdown behaviour is specified by Sigma.
What camera body is required to use this lens?
A Fujifilm X-mount mirrorless body is required; the lens is designed for APS-C sensors and will not mount on Fujifilm G-mount or other systems without an adapter.
Can the 55mm filters in the bundle be used on my older Fujifilm lenses?
The bundle supplies 55mm threaded filters; they fit any lens with a 55mm filter thread, while lenses with different thread sizes would need their own step rings.
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