2022-Sigma reveals 20mm F1.4 DG DN lens for L-mount and E-mount: Digital Photography Review


Sigma 20mm F1p4

Sigma has introduced the 20mm F1.4 DG DN lens for L-mount and Sony E-mount cameras. This new lens is a mirrorless successor to the corporate’s 20mm F1.4 DG HSM lens for DSLR digicam methods and brings a group of distinctive options that make it a very intriguing providing for astro and panorama pictures.

The lens is constructed of 17 parts in 15 teams, together with two Tremendous-Low Dispersion (SLD) parts and three aspherical parts. Included in these specialised ingredient is a pair of double-sided aspherical parts, which the corporate says contributes to the ‘excellent optical efficiency’ throughout your entire body.

Sigma 20mm F1.4 01

Different optical options consists of Sigma’s Nano Porous Coating (NPC), in addition to a water- and oil-repellent coating, though it’s not specified which parts these coatings have been utilized to (presumably the front-most ingredient). This lens’ optical building is notably completely different from its DSLR counterpart, which is constructed of 15 parts in 11 teams.

The 20mm F1.4 DG DN lens makes use of an 11-blade rounded aperture diaphragm, an aperture vary of F1.4 by to F16, has a minimal focusing distance of 23cm (9.1″) and makes use of an 82mm entrance filter thread.

The inner autofocus system is pushed by way of a stepping motor and Sigma says the lens is totally suitable with Sony’s AF help features. Along with the bodily focus ring, there’s a bodily aperture ring that may be clicked or de-clicked with a devoted change.

Different options embrace a spotlight mode change, a rear filter holder and a brand new Guide Focus Lock (MFL) change for disabling the main target ring. With astrophotography in thoughts Sigma has additionally included, for the primary time ever, a Lens Heater Retainer, for customers making an attempt to keep away from condensation when working in chilly situations. The retainer is a curved lip on the entrance of the lens designed to maintain lens heaters from sliding in entrance of the lens.

Sigma 20mm F1.4 02

The physique of the lens is constructed from a mix of aluminum and Thermally Secure Composite (TSC). Sigma says the lens is ‘dust- and splash-resistant.’

Between the rear filter holder, the Lens Heater Retainer, the Guide Focus Lock change and the distinctive composite used within the physique of the lens, it’s clear this lens is designed with astrophotography in thoughts.

The E-mount model of the lens measures 87.8mm (3.5″) in diameter by 113.2mm in size (4.5″) and weighs 630g (22.2oz). The L-mount model is barely shorter, however weighs a further 5G (0.2oz). Every lens comes with a petal-type lens hood, entrance and rear lens caps, and a information plate.

The Sigma 20mm F1.4 DG DN lens might be accessible to buy in ‘late August 2022 for $899.

SIGMA Declares 20mm F1.4 DG DN | Artwork, the World’s First and Solely 20mm F1.4 Lens Designed Solely for Mirrorless

Ronkonkoma, NY – August 8, 2022 – SIGMA Company of America, the US subsidiary of SIGMA Company (CEO: Kazuto Yamaki. Headquarters: Asao-ku, Kawasaki-shi, Kanagawa, Japan) is happy to announce the upcoming launch of the 20mm F1.4 DG DN | Artwork, a full-frame, wide-angle prime lens designed completely for mirrorless cameras. It’s the first and solely lens of this specification, becoming a member of its predecessor – the 20mm F1.4 DG HSM | Artwork – as the one 20mm F1.4 lenses accessible for full-frame platforms.

With very good optical readability from nook to nook, excellent construct high quality with a mud and splash-resistant construction, and new particulars that contemplate the wants of discerning customers, the brand new SIGMA 20mm F1.4 DG DN | Artwork is optimized for astrophotography, whereas providing efficiency that makes it a wonderful alternative for anybody in search of a high-quality, wide-angle prime lens.

Along with its spectacular imaging capabilities and premium Artwork line options, the 20mm F1.4 DG DN | Artwork introduces a Guide Focus Lock, which permits the consumer to set focus manually and lock it in place, particularly helpful for time-lapse capturing or lengthy exposures. A brand new Lens Heater Retainer retains this convenient astrophotography climate accent firmly in place whereas in use. A Rear Filter Holder supplies a chance to make use of rear-mounted filters for numerous results with out inflicting distortion or vignetting. And a handy entrance filter thread permits customers to additionally make the most of generally accessible 82mm filters.

The 20mm F1.4 joins the brand new 24mm F1.4 DG DN and the present 35mm and 85mm F1.4 DG DN primes designed for full-frame mirrorless cameras.

The brand new SIGMA 20mm F1.4 DG DN | Artwork lens might be accessible for each Sony E-mount and L-Mount methods within the U.S. at SIGMA Licensed Sellers for a retail value of $899 in late August 2022.

Study extra concerning the SIGMA 20mm F1.4 DG DN | Artwork:

The F1.4 collection represents the SIGMA Artwork line, which pursues the best optical efficiency and wealthy expression. The complete-frame SIGMA 20mm F1.4 DG DN | Artwork is a mirrorless model of the SIGMA 20mm F1.4 DG HSM | Artwork; the one and solely lens* with its distinctive specification of most aperture of 1.4 and an ultra-wide angle of 20mm. This lens presents overwhelming optical efficiency and limitless potential for extremely wide-angle creativity at a compact bodily dimension. The distinctive F1.4 brightness and the breathtaking sharpness throughout your entire picture even at most aperture make this lens the last word alternative for astrophotography. In nightly darkness and centered to infinity, the 20mm F1.4 DG DN | Artwork captures stars within the sky as clear, exact pinpoints of sunshine. State-of-the-art optical design and the big, high-precision double-sided aspheric glass entrance ingredient made it potential so as to add a entrance filter thread with none compromises concerning optical efficiency or dimension. The addition of different invaluable options similar to a rear filter holder and a wide range of helpful switches additional will increase the inventive potentialities and straightforward usability of the lens. Its unbelievable sharpness and really brilliant aperture, coupled with the compact physique and considerate options, make the SIGMA 20mm F1.4 DG DN | Artwork the last word lens for astrophotography and a really perfect companion for any photographically demanding state of affairs.

* As an AF interchangeable lens for mirrorless cameras that covers 35mm full-frame (as of August 2022, by SIGMA)

Key Options

1. Highest optical efficiency on a brand new degree

The SIGMA 20mm F1.4 DG DN | Artwork delivers exceptionally detailed outcomes that simply fulfill the excessive calls for {of professional} pictures and different high-end functions. With 17 glass parts organized in 15 teams, together with two SLD, three aspherical glass parts and the biggest class double-sided aspherical glass ingredient in SIGMA’s historical past, the 20mm F1.4 DG DN | Artwork rigorously suppresses numerous optical aberrations similar to sagittal coma flare or picture distortion to supply highly-detailed pictures with distinctive sharpness and accuracy from the middle to the furthest corners, permitting photographers to utilize your entire discipline of view afforded by its ultra-wide viewing angle. This final astrophotography lens is the fruits of the unparalleled manufacturing expertise of SIGMA’s sole manufacturing base in Aizu, Japan, in addition to the corporate’s know-how and expertise with large-aperture wide-angle lenses, such because the SIGMA 20mm F1.4 DG HSM | Artwork, the SIGMA 14mm F1.8 DG HSM | Artwork and the SIGMA 14-24mm F2.8 DG DN | Artwork.

2. Designed for good outcomes even in essentially the most demanding situations

SIGMA’s excellent design and high-precision manufacturing capabilities made it potential to equip the SIGMA 20mm F1.4 DG DN | Artwork with a entrance filter thread regardless of its very giant F1.4 aperture and 20mm ultra-wide viewing angle. The lens additionally comes with a rear filter holder, permitting photographers the liberty to mix a number of filters to swimsuit an enormous number of capturing conditions for near-unlimited inventive potential at an ultra-wide viewing angle — for instance, utilizing a entrance filter to scale back gentle air pollution and a softening filter on the rear to take spectacular pictures of nightly landscapes with star-filled skies. The brand new MFL (Guide Focus Lock) change to show off the main target ring makes it simpler to focus on the shoot with out worrying about unintentionally altering the focusing distance. Additional, the lens additionally equips a lens heater retainer, that means that lens heaters used to stop inside condensation because the temperature drops on longer evening shoots will keep securely connected to the barrel with out protruding into the picture and inflicting unpleasant vignetting. With its sensible optical energy and its full vary of helpful options regardless of its compact and light-weight physique, the SIGMA 20mm F1.4 DG DN | Artwork is the last word alternative when photographing the evening sky.

3. Excellent construct high quality and usefulness, uncompromising consideration to element

Its dust- and splash-resistant construction*1 and the water- and oil-repellent coating on the entrance glass ingredient make the SIGMA 20mm F1.4 DG DN | Artwork protected to make use of throughout longer out of doors shoots, particularly throughout the evening. Considerate options similar to a spotlight mode change, a customizable AFL*2 button, and an aperture ring lock change improve the lens usability. An aperture ring click on change can be utilized to show the aperture ring click on on and off, permitting photographers to benefit from the sound and really feel of the press, in addition to easy aperture operation throughout video recording. The strong physique is constructed from a mix of aluminum and Thermally Secure Composite (TSC), giving it a smooth end, and the included petal-shaped lens hood is supplied with a lock mechanism to maintain the hood securely mounted to the lens, and the rubberized grip space makes attaching and eradicating the hood a fast and straightforward course of. Manufactured in Japan with an uncompromising method in direction of each single element, the SIGMA 20mm F1.4 DG DN | Artwork presents photographers an distinctive expertise with high-end outcomes even in essentially the most troublesome situations, because of its excellent optical efficiency, distinctive construct high quality good for skilled use, sensible and exact ergonomics, and a variety of helpful options.

*1 Though this building permits the lens for use in gentle rain, it’s not the identical as being waterproof.
*2 Solely on suitable cameras. Obtainable features could differ relying on the digicam used.

Principal specs
Lens kind Prime lens
Focal size 20 mm
Lens mount L-Mount, Sony E
Most aperture F1.4
Minimal aperture F16
Aperture ring Sure
Variety of diaphragm blades 11
Aperture notes Rounded
Components 17
Teams 15
Particular parts / coatings Two Tremendous-Low Dispersion parts, three aspherical parts, Tremendous Multi-Layer coating, and water- and oil-resistant coating.
Minimal focus 0.23 m (9.06)
Autofocus Sure
Motor kind Stepper motor
Full time handbook Sure
Focus methodology Inner
Distance scale No
DoF scale No
Weight 635 g (1.40 lb)
Diameter 88 mm (3.46)
Size 111 mm (4.38)
Supplies Aluminum, Thermally Secure Composite (TSC)
Sealing Sure
Color Black
Filter thread 82 mm
Filter notes Rear filter holder + entrance thread
Hood equipped Sure
Hood product code LH898-04
Tripod collar No


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