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Sigma 24mm F1.4 DG HSM "A" for Nikon

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Sigma 20mm F1.4 DG HSM "A" for Canon

Canon fit ultra-wide-angle lens from the Sigma Art series. F1.4 maximum aperture. The first F1.4 ultra-wide-angle lens for full frame DSLRs. Enjoy incredible image quality with enhanced control of light and composition. This bright, fast lens delivers outstanding performance and beautiful bokeh for creative shots.

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£629.00
£629.00
  • SIGMA has created an ultra-wide-angle lens with F1.4 brightness. To offer an ultra-wide-angle 20mm focal length and F1.4 brightness at wide-open aperture, this lens incorporates a large double aspherical lens 59mm in diameter.

     

    With a focal length of 20mm and F1.4 aperture, this lens delivers outstanding large-aperture brightness and bokeh, delivering unprecedented visual experiences. Allowing the photographer to leverage the perspective provided by the wide -angle and the shallow depth of field provided by the large aperture, this lens is ideal not only for such ultra-wide-angle subjects as landscapes and starry skies, but also for snapshots in low light, indoor photography, portraits with a natural bokeh effect, and much more.

     

     

     

    Key points

    • Incredible rendering performance delivers unprecedented visual experiences. Enjoy enhanced control of light and composition.

    • Advanced technologies make a 20mm F1.4 aperture lens a possibility.

    • The idea high speed wide-angle lens for the ultra-high megapixel era

    • High peripheral brightness.

    • Designed to minimize flare and ghosting

    •Rounded Diaphragm

    •Hyper Sonic Motor ensures High AF Speed

    •Brass made bayonet mount

     

     

    Reduced flare

    SIGMA's advanced optical design minimizes distortion, transverse chromatic aberration, sagittal coma flare, and the reduction of brightness toward the edges of the image. Delivering top performance even at wide-open aperture, this lens can be considered the culmination of SIGMA’s Art line.

     

    Excellent correction of chromatic aberration

    The SIGMA 20mm F1.4 DG HSM | Art incorporates FLD (“F” Low Dispersion)* glass and SLD (Special Low Dispersion) glass elements to minimize chromatic aberration of magnification which is mainly visible around the edge of the image. Moreover the power layout ensures the correction of axial chromatic aberration. Without any color blur, it achieves high image quality throughout the entire focusing range, thus achieving sharp and high contrast image rendering.

     

    Minimal Distortion

    Distortion is a common issue in wide-angle lenses, and it is not possible to correct it simply by changing the aperture value. For this reason, a lens must be designed from the start to minimize this issue. By adjusting the incidence angle of light starting with the first lens element and incorporating optimally positioned aspherical glass elements, the SIGMA 20mm F1.4 DG HSM | Art lens minimizes distortion throughout the entire image.

     

    High peripheral brightness

    By improving the efficiency at large apertures and minimizing vignetting, it secures very good brightness. Without considering the lack of light even at the open aperture, it ensures high contrast images for indoor photography, astronomical photography and when photographing blue sky.

     

    Designed to minimize flare and ghosting

    Flare and ghosting were thoroughly measured and monitored from the lens development stage to establish an optical design which is resistant to strong incidental light such as backlight. The Super Multi-Layer Coating reduces flare and ghosting and provides sharp and high contrast images even in backlit conditions.

     

    Rounded Diaphragm

    The 9 blade-rounded diaphragm creates an attractive blur to the out-of-focus areas of the image.

     

    Hyper Sonic Motor ensures High AF Speed

    The HSM (Hyper Sonic Motor) ensures a silent, high-speed AF function. By optimizing the AF algorithm, smoother AF is achieved. It incorporates a new full-time manual focusing mechanism that switches to manual focusing, simply by rotating the focus ring, even when AF is being used. This allows the photographer to make focus adjustments quickly and easily.

     

    Brass made bayonet mount

    This lens incorporates a brass made bayonet mount which has both high accuracy and durability. A special treatment to reinforce its strength is applied to the surface giving it greater strength and making it highly resistant to long-term use.

     

    Made in Japan” with the best craftsmanship

    All SIGMA's manufacturing – right down to the molds and parts – is carried out under an integrated production system, entirely in Japan.

  • Lens Construction  15 elements in 11 groups
    Minimum aperture (W)  F16
    Filter size  77mm
    Angle of view (35mm equivalent)  94.5°
    Minimum focusing distance  27.6cm
    Dimensions (Diameter x Length) φ90.7mm x 129.8mm / 3.6 in. x 5.1 in.
    Number of diaphragm blades  9 (rounded diaphragm)
    Maximum magnification ratio  1 : 7.1
    Weight 950g

Additional Information

Box Contents: Lens, Case, Petal-Type Hood, lens cap
Manufacturer Sigma
Model No
MPN 412954