Sigma 20mm f1.4 Art DG DN

Available for Pre-Order

Total reviews: 0
Camera West ID: 1266824
From $899.00

Product Information

Highest optical performance on a new level

The SIGMA 20mm F1.4 DG DN | Art delivers exceptionally detailed results that easily satisfy the high demands of professional photography and other high-end applications. With 17 glass elements arranged in 15 groups, including two SLD, three aspherical glass elements and the largest class double-sided aspherical glass element in SIGMA’s history, the 20mm F1.4 DG DN | Art rigorously suppresses various optical aberrations such as sagittal coma flare or image distortion to produce highly-detailed images with exceptional sharpness and accuracy from the center to the furthest corners, allowing photographers to make use of the entire field of view afforded by its ultra-wide viewing angle. This ultimate astrophotography lens is the culmination of the unparalleled manufacturing technology of SIGMA’s sole production base in Aizu, Japan, as well as the company’s know-how and experience with large-aperture wide-angle lenses, such as the SIGMA 20mm F1.4 DG HSM | Art, the SIGMA 14mm F1.8 DG HSM | Art and the SIGMA 14-24mm F2.8 DG DN | Art.


Designed for perfect results even in the most demanding conditions

The new MFL (Manual Focus Lock) switch

When the MFL switch is set to “LOCK”, the focus ring operation will be disabled.
This is to prevent the focus ring from accidentally being moved, which would cause out-of-focus images


Support front and rear filters

The lens also comes with a rear filter holder, allowing photographers the freedom to combine multiple filters to suit a huge variety of shooting situations for near-unlimited creative potential at an ultra-wide viewing angle—for example, using a front filter to reduce light pollution and a softening filter on the rear to take impressive, sharp photographs of nightly landscapes with star-filled skies.


Lens heater retainer

Further, the lens also equips a lens heater retainer, meaning that lens heaters used to prevent internal condensation as the temperature drops on longer night shoots will stay securely attached to the barrel without protruding into the image and causing unsightly vignetting. With its brilliant optical power and its full range of useful features despite its compact and lightweight body, the SIGMA 20mm F1.4 DG DN | Art is the ultimate choice when photographing the night sky.


Superb build quality and usability with uncompromising attention to detail

Its dust- and splash-resistant structure* and the water- and oil-repellent coating on the front glass element make the SIGMA 20mm F1.4 DG DN | Art safe to use during longer outdoor shoots, especially during the night.

* Although this construction allows the lens to be used in light rain, it is not the same as being waterproof.

Lens Construction 17 elements in 15 groups
Angle of View 94.5 °
Number of Diaphragm Blades 11 (Rounded diaphragm)
Minimum Aperture F16
Minimum Focusing Distance 23cm / 9.1in.
Maximum Magnification Ratio 1:6.1
Filter size φ82mm
Dimensions (Diameter × Length) L-Mount: φ87.8mm × 111.2mm / φ3.5in. × 4.4in.
Sony E-Mount: φ87.8mm × 113.2mm / φ3.5in. × 4.5in.
Weight L-Mount: 635g / 22.4oz.
Sony E-Mount: 630g / 22.2oz.
  • Case
  • Petal-type lens hood with lock (LH878-04)
  • Front Cap (LCF-82 III)
  • Rear Cap (LCRII)
  • Guide Plate (GP-21)

Delivery & returns

Returns & Exchanges

To ensure that you are pleased with the products you order from our stores all of our pre-owned gear come with a 24 hours inspection period for you to check out the item against our description. If it doesn't meet your expectations please reach out to us to start a return.

All returns are accepted 14 days from point of sale and must be returned in the original condition they were shipped as. Returns might be subject to a restocking fee of up to 15%, but as a courtesy, we do our best to work around fees if it is possible. We invite you to contact us for more info of you have a question about a return.

For more info concerning returns and exchanges please visit our knowledge base here.


Shipping & Delivery

Shipping of items over $100 required direct signature. All items over $100 are shipped via Fedex Ground. Please make sure your address accepts Fedex delivery services. Usually, PO boxes are not acceptable delivery addresses. For packages over $100 we require a direct signature if there is an issue with this please reach out to [email protected] with your order number and we will see what we can do to accommodate.

For more info concerning shipping please visit our knowledge base here.


Questions & Inquiries

Please feel free to email us [email protected], or fill out the form below and we will do our best to assist you.


Image by Jack Fusco

Image by Dean Sherwood

Image by Numazawa Shigemi

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