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Sigma 20mm F1.8 EX DG ASPHERICAL RF
8.0 out of 10

Sigma 20mm F1.8 EX DG ASPHERICAL RF

This Sigma 20mm F1.8 EX DG Aspherical RF is a unique Sigma offer Read more

Great Deal: $579.95

Reviews and Problems with Sigma 20mm F1.8 EX DG ASPHERICAL RF

Showing 1-10 of 13
Overall 6
6.0

Not Top Notch, but Priced Well

B.K., Amazon
8 January 2015
  • Summary: If I could, I'd rate it at 3.5/5 stars - but don't personally believe it's quite a 4/5. I got this lens because I wanted an ultrawide on full frame. Here's where it performs best: low light shots, video, af speed, depth of field. Given the aperture, and being a wide angle, this lens is great for low light shots. I also found it pleasing to use for video. It's so wide, camera shake is hardly noticeable.
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Overall 6
6.0

Nice lens, disappointed that it isn't weather sealed

Marlin Beckfield "beckfield", Amazon
31 January 2014
  • Summary: This appears to be a very nice lens, but I'm a little disappointed to learn that it is not weather sealed. I purchased this lens specifically for photographing Northern Lights, so I'll have to take care when bringing this lens indoors from the cold.
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Overall 6
6.0

Good lens for it's intended purpose

G. Kerber, Amazon
13 December 2013
  • Summary: I bought this lens strictly for shooting stars. Good (not great) value for the money. There aren't many wide lenses out there this fast. It works well for stars. I'm able to get 2 more stops of shutter speed compared to my f/2.8 lenses. A big plus in my opinion. On the down side, this lens vignettes badly at anything wider than f/3.5. Not a huge issue when the scene is mostly dark and I typically add vignetting to some degree in post processing.
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Overall 6
6.0

Great for price and allows for interesting effects

Scott W. Larson, Amazon
17 March 2013
  • Summary: I don't do much wide angle photography but I've had this lens for years and took it on a hike last summer with a Canon 5D Mark II. It has good center sharpness but even at f10 the corners are somewhat smeary. This is perfectly acceptable for a 20mm lens at this price. The lens has none of the warm/golden color that older Sigma lenses had like the 17-35mm. It has bright even color and contrast like a Canon lens. It does have Sigma's klutzy two step focus motor system.
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Overall 6
6.0

Good on a digital SLR

M. Broderick "mikebinok", Amazon
3 August 2002
  • Summary: My copy of this lens gives good image quality, though it does have slight barrel distortion (things near the edge of the field of view bulge out very slightly). This is typical for this wide of a lens, and isn't noticeable unless viewing something with lots of straight lines near and parallel to the edge of the frame. I like the lens, but do make sure you really want a lens with a field of view THIS WIDE.
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Overall 6
6.0

Good lens, bit expensive

Leslie Johnstone "sebulba", Amazon
16 December 2010
  • Summary: I bought this for use on my D3. It works pretty much as the reviews say (elsewhere). at f1.8 you do get a lot of vignetting but at f4 and higher its not a problem. Its all fixed very well with the lens profiles on Lightroom 3. Its sharp. I reckon just about as good as my Nikon 24-70. It a good buy if you want a wider angle lens for a full frame DSLR without going to the expense od something like the Nikon 14-24 at £1300.
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Overall 5
5.0

User Review

PhotoA, objektiivi
23 December 2013
  • Excerpt: Hankin tämän lasin aikoinaan jo filmirunkoon ja olin silloin ihan tyytyväinen sen kuvalaatuun, kun vain muisti himmentää edes f4:ään. Piirto oli hyvää jopa reunoilla. Siirtyminen croppikennoiseen digiin paljasti ettei piirto tahtonut enää riittää, vasta aukoilla 8-11 kuvien terävyys oli oikein hyvää luokkaa. Monet hyvät maisemakuvat tälläkin linssillä on kaikesta huolimatta otettu, siihen tarkoitukseen tämä onkin sopivin.
  • Pros: + Tukeva rakenne., + Lyhyt tarkennusetäisyys., + Suuri valovoima helpottaa käsitarkennusta hämärässä.
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Overall 6
6.0

Günstige Alternative - wenn man ein gutes Korrekturprogramm besitzt

scotti55, Amazon
18 November 2013
  • Summary: Ich hab's für Architekturaufnahmen gebraucht und bin erst ein bisschen enttäuscht gewesen. LR4 und auch PS 6 haben erst keine Objektivkorrekturprofile im Netz gefunden, so dass ich manuell korrigieren mußte - Was für 'ne besch*** Verzeichnung. In der Mitte die übliche Tonne und am Rand `n Kissen + starke Abberation. Immerhin ist es lichtstark. War ein müssiges Gebastel bis es gestimmt hat und wollte es schon wieder gegen ein Canon ersetzen...
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Overall 6
6.0

User Review

dimasomegas, Yandex
26 July 2013
  • Excerpt: Брал новый на Canon, (не буду писать где, дабы не было рекламы). Разложил всё по полкам.
  • Pros: 1. Смотрится на камере солидно (Массивный, с золотым колечком) 2. Есть диафрагма 1.8 должно бы помогать, в мало освещённых местах, но… (далее в недостатках) 3. Неплохой угол обзора. 4. Богатая комплектация . (Сумочка и бленда в комплекте)
  • Cons: 1. Периодически бэк – фронт фокус (особенно на диафрагмах менее 2.2) .т.е., 2.0 и 1.8 2. Непредсказуемый результат по фокусировке если выбрана не центральная точка автофокуса. 3. Тяжёлый. 4. Дорогие светофильтры, 82мм всё таки. ( Полярик аж за 4 т.р., защитный 2 т.р. и т.д.) 5. Нет отдельно бленд в продаже, нет даже в поднебесной. Только универсальные резиновые. (Я свою уже всю исцарапал) 6. И нет на нём идеальной резкости. Такое чувство, что на кит снимаешь, но диафр...
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Overall 6
6.0

ärgerlich

thezapp "thezapp", Amazon
12 July 2012
  • Summary: Die 1.8er Serie (20/24/28) von Sigma ist eigentlich nur ärgerlich. Riesige Frontlinsen sollen Licht ins Dunkel bringen. Die Qualität bei Offenblende ist mau und es gibt tolle Farbringe an s/w Kanten. Auch Abblenden hilft nicht viel. Die Verarbeitung ist sehr mittelmässig. Am schlimmsten finde ich, dass Sigma seit es die 1.8er Serie gibt keine 2.8/24 oder 2.8/28 Objektive mehr baut. Die waren günstig und als MF Version sogar sehr ordentlich gefertigt.
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