JuzaPhoto uses technical cookies and third-part cookies to provide the service and to make possible login, choice of background color and other settings (click here for more info).

By continuing to browse the site you confirm that you have read your options regarding cookies and that you have read and accepted the Terms of service and Privacy.

OK, I confirm

You can change in every moment your cookies preferences from the page Cookie Preferences, that can be reached from every page of the website with the link that you find at the bottom of the page; you can also set your preferences directly here

Accept Cookies

Customize

Refuse Cookies

Sigma 20mm f/1.8 EX DG : Specifications and Opinions

Sigma 20mm f/1.8 EX DG

The Sigma 20mm f/1.8 EX DG is a wide-angle lens for FF and APS-C, manufactured from 2002 to 2015 (discontinued). The focus is done by Lens AF motor (non-ultrasonic), it does not have image stabilization. The average price, when it has been added to the JuzaPhoto database, is 600 €;

19 users have given it an average vote of 8.4 out of 10.

Specifications
Focal lenght	20 mm
Angle of view	94.5°
Format	FF, APS-C
Max. aperture	f/1.8
Aperture blades	9
Lenses/Groups	13 elements in 11 groups
Min. focus distance	0.20 meters
Reproduction ratio	0.25x
Features
Stabilization	No
Focus	Lens AF motor (non-ultrasonic)
Internal Focus	No
Built and notes
Tripod ring	No
Extenders	No
Filters	82 mm
Lens hood	Yes, supplied
Weather sealing	No
Weight	520 g
Dimensions	89 x 90 mm
Buy
Sigma 20mm f/1.8 EX DG, buy on Ebay JuzaPhoto contains affiliate links from Amazon and Ebay and JuzaPhoto earn a commission in case of purchase through affiliate links.

Publish your advertisement on JuzaPhoto (info)

Reviews

What do you think about this lens?

Do you want add your opinion? You do it by joining JuzaPhoto, it is easy and free!

There is more: by registering you can create your personal page, publish photos, receive comments, join discussions and you can use all the features of JuzaPhoto. With more than 253000 members, there is space for everyone, from the beginner to the professional.

Timk2

sent on May 08, 2014

Pros: Unique spec, closest focus, fastest in class

Cons: 82mm filters, odd push-pull AF/MF selector, old style focus, Expensive - for its quality. Overshadowed by new Nikkor G 20mm f1.8

Opinion: This lens has two separate uses for me: Street capture - use at f2 and take off the hip. Great for wideangle industrial documentary style shots. The lens is sharp in the centre at f2, the edges much less so, which is often OK for this style of shooting. Landscapes - stop down to f4 and beyond and then it's as sharp as the competition and performs much more evenly across the frame. Distortion is low. Big 82mm filters make polarisers expensive. Handling and balance on the camera is good though the odd push/pull MF/AF selector is a nuisance. The lens also uses old Sigma AF technology, screw-driven and not HSM, but in the field for street stuff, it works OK on my D700 and D7000. The close focus might seem a gimmick but a really useful one - see my snowdrops entry. Recommended? Probably not - and only then for FX full-frame; it is expensive and quite big - Nikon's 20mm D f2.8 is pocket-sized and uses only 62mm filters. However, its unique spec is certainly intriguing and the performance isn't always the disaster it might be made out to be, if used within its limitations. Those with the money will have to sacrifice slight angle of view and splash out for the Nikkor G 24mm f1.4, to get the best quality. And now, (edit) the brand new Nikkor G 20mm f1.8 which has obviously copied the this Sigma's specification. My score 8/10

The following opinions have been automatically translated with Google Translate.

Stefano Banda

sent on July 22, 2021

Pros: Very bright, interesting bokeh, good color rendering, sturdy construction

Cons: Not very clear at f/1.8, autofocus that must be calibrated with care, uncomfortable and anachronistic AF/MF selection, availability of the hood

Opinion: Purchased used (Pentax-K mount) at an attractive price, it lends itself well to environments with low light and in general for somewhat "creative" shots, as long as you do not expect a stratospheric image quality, especially at the most open apertures. At full aperture the sharpness is discreet in the center but really poor at the edges, to get good results on the whole frame you have to close at f / 8. It must be said that diaphragm already at f/2 in the center improves a lot. I often use it between f/2 and f/2.8, and taking advantage of the minimum focus distance of about 20 cm, you can get very special photos, also thanks to a soft and gradual bokeh. Surely the large aperture requires you to calibrate the autofocus carefully through the fine adjustment "in-camera", otherwise focusing on the wrong point is a moment. Still on the subject of autofocus I emphasize, in addition to a certain slowness, the inconvenience of the AF / MF passage, which betrays the age of the lens. The large diameter of the front lens (82 mm) means that you have to spend a lot on a basic set of filters, luckily I already had those for the Pentax 24-70 f/2.8, which has the same diameter. Finally I point out that I was sold without a hood, and that this is really difficult to find. You can fix it with that for the 24-70 f/2.8 of Sigma, but of course you have to know... Rating 7

Fabio Cammalleri

sent on June 04, 2021

Pros: Street, events, portraits, interiors.

Cons: Poor sharpness already in the center, even worse at the edges.

Opinion: Bought new with Pentax frame, to do multi-evening installations, via Lattea and similar, however landscape in general, at a really ridiculous price, I put it to the test to diaphragms between f5.6 and f11 just to keep it nice sharp on my K-1 that in detail pulls out a lot, in the village of Bobbio, in the afternoon and at the blue hour. Needless to say, for what I was doing, it was not good and I resold it the next day at 20€ less so much the shame of proposing such a poor optics ... at least to make landscapes. Its opening can be useful indoors: birthdays, parties, events, nothing more. Maybe in crop on apsc it definitely goes better, no on full-frame.

Fangoman

sent on December 28, 2018

Pros: Realisation, sharpness, F 1.8

Cons: AF not always accurate, dual selection for AF/MF

Opinion: Now I have this lens for a year, I find it a spectacular travel companion: the diameter of the filter holder 82mm allows you to use the systems 100mm without reductions. Also I find that it is very sharp and the F 1.8 together with the minimum focus of 20cm from huge photographic possibilities. The only flaw is the AF being a technology not just first coat is inaccurate and slow and sometimes fails to focus, at the beginning I found laborious the selection of the focus mode but once used not by problems. I use it on both Canon and Sony with excellent results.

Schmau

sent on September 14, 2016

Pros: Minimum focusing distance 200mm, precise and fast AF with normal sharpness especially light in the center that helps in some ways blurred.

Cons: Filters a bit 'expensive.

Opinion: Valid for use 20mm x street / documentaries and views, not bad in ravvicinati.rnCon excellent portraits of focusing distance, about 20cm. you may also have fine details in partial immagine.rnSi use comfortably in both FF formats APS-C.rnA my humble opinion, a good compromise if used within its limits (which however also have other wide angle). well built I would say, in use you'll immediately notice that it is not plasticky and yet that feeling solid. In well-built complex, I would definitely recommend giving it a rating of 9/10.

There are 1 more reviews. Show all »

Photos taken with Sigma 20mm f/1.8 EX DG

Aurora Borealis, 014528

by Juza
295 comments, 86458 views

While in the shelter ... and many snorers ...

by Nth
170 comments, 60243 views [editors pick]

Aurora Borealis, 014481

by Juza
93 comments, 44337 views

Aurora Borealis, 014468

by Juza
63 comments, 15892 views

Rays of the morning sun damage

by Nth
60 comments, 16707 views

Milky Way and Baobab (installation of two photos), 010406

by Juza
14 comments, 11733 views

Aurora Borealis, 014486

by Juza
11 comments, 7648 views

Publish your advertisement on JuzaPhoto (info)

Lake McConaughy, Ogalalla, Nebraska

by Vermillion
15 comments, 3104 views

Arco galactic

by Cobarcore
32 comments, 6858 views

HI RES 8.1 MP

Aurora Borealis, 014523

by Juza
1 comments, 5177 views

Palma and the Milky Way, 010523

by Juza
6 comments, 4652 views

Colors in the sky

by Cobarcore
22 comments, 4379 views

Aurora Borealis, 014587

by Juza
21 comments, 5816 views

Night Coming Soon

by Nth
30 comments, 5932 views

Dolomites, 008687

by Juza
3 comments, 5515 views

Behind the trees

by Cobarcore
21 comments, 4407 views

Happy New Year!!!

by Timk2
28 comments, 3625 views

HI RES 16.0 MP

Night Coming Soon

by Nth
8 comments, 3055 views

Blossom

by Timk2
7 comments, 2374 views

HI RES 11.0 MP

Country Piacenza, 010087

by Juza
2 comments, 4351 views

Country Piacenza, 010077

by Juza
1 comments, 3505 views

Rotation on Madonna

by Cobarcore
9 comments, 3460 views

Baita magica

by Nth
7 comments, 4079 views

Spectacular Sunrise!

by Timk2
30 comments, 2455 views

HI RES 12.1 MP

How Low Can You Get ? - 2

by Timk2
17 comments, 2164 views

HI RES 12.1 MP

Tree & Stars

by Timk2
5 comments, 2427 views

HI RES 11.4 MP

The Generoso ISS

by Cobarcore
1 comments, 3735 views

Night on the channel Cavour

by Vermillion
4 comments, 931 views

Temple Meads Station

by Timk2
6 comments, 2029 views

HI RES 12.1 MP

Swans at Sunrise

by Timk2
5 comments, 2386 views

HI RES 11.1 MP

Dedicated to a friend

by Gaia Alessandro
2 comments, 1011 views

HI RES 14.9 MP

Rocks, stars and snow

by Nth
2 comments, 2329 views

Above the fjord

by Cobarcore
5 comments, 2528 views

The Boathouse - at Night

by Timk2
3 comments, 1661 views

HI RES 11.7 MP

Publish your advertisement on JuzaPhoto (info)

Sunset Generoso

by Cobarcore
5 comments, 2334 views

Snowdrops

by Timk2
0 comments, 1651 views

HI RES 10.6 MP

Blossom on the Tree

by Timk2
12 comments, 1778 views

HI RES 11.8 MP

The sample photos are selected automatically between all photos posted by JuzaPhoto members, using the camera and the lens selected in the techs. If you find evident errors (e.g. photos taken with cameras and lenses that are not available yet), you can contribute to improve the page by sending a private message to the user that has entered incorrect values in the photo caption.

Reviews » Lenses » Lenses Sigma » Sigma 20mm f/1.8 EX DG

Sigma 20mm f/1.8 EX DG : Specifications and Opinions

Buy

Offerte Usato RCE

Reviews

What do you think about this lens?

Photos taken with Sigma 20mm f/1.8 EX DG