Sigma 20mm F1.4 DG DN I Art

1,049.00
 

The new SIGMA 20mm F1.4 DG DN | Art is a wide-angle, ultra-wide-aperture prime that is perfect for astrophotography.

Available in L-Mount and Sony E-mount, it delivers outstanding Art-line optical quality and offers a range of advanced features. As well as being very well-suited to astro, the 20mm F1.4 is an ideal optic for landscapes, interiors and a range of other wide-angle applications.

Weighing in at just 635g, the lens is significantly lighter and more portable than Sigma’s existing 20mm F1.4, and introduces a number of important features including a manual aperture ring with de-click and lock functionality, a front filter thread and rear filter holder, a Lens Heater Retainer to hold a heat strip in position, and an all-new Manual Focus Lock switch to fully deactivate the focus ring.

The optical performance of the lens is exceptional, with ultra-sharp results across the entire frame even at F1.4, and very well controlled sagittal coma flare – essential for astrophotography. The bright aperture is perfect for night sky landscapes, as well as for hand-held low-light shooting and for achieving a shallow depth-of-field.

This superb image quality, compact form-factor and advanced feature-set, combined with a beautifully constructed body, make for a versatile, high-performance optic that will enable photographers to unleash their creative potential and start achieving wide-angle images with impact.

 

Additional features

  • Lens construction: 17 elements in 15 groups, with 2 FLD and 3 aspherical elements

  • Internal focus system

  • Compatible with high-speed autofocus

  • Stepping Motor

  • Compatible with Lens Aberration Correction

    • Function available on supported cameras only. Available corrections and auto correction functionality may vary depending on the camera model.
    • On cameras where lens aberration correction is controlled with ‘ON’ or ‘OFF’ in the camera menu, please set all aberration correction functions to ‘ON’ (AUTO).

  • Support for DMF and AF+MF

  • Compatible with AF Assist (Sony E-mount only)

 

 

Key specifications (The figures below are for L-Mount)

Lens construction: 15 groups, 17 elements (2 FLD and 3 aspherical elements) Angle-of-view: 94.5°
Number of diaphragm blades: 11 (rounded diaphragm)
Minimum aperture: F16

Minimum focusing distance: 23cm
Maximum magnification ratio: 1:6.1
Filter size: φ82mm
Dimensions (max diameter x length): φ87.8mm x 111.2mm Weight: 635g

 

Filter Thread Size:
20mm
Manufacturer:
Sigma
Sigma 20mm F1.4 DG DN I Art
Sigma 20mm F1.4 DG DN I Art

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Specifications

  

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