Sigma 20-40mm f/2.8 EX DG : Specifications and Opinions

Sigma 20-40mm f/2.8 EX DG

The Sigma 20-40mm f/2.8 EX DG is a wide-angle lens for FF and APS-C, discontinued. The focus is done by Lens AF motor (non-ultrasonic), it does not have image stabilization.

8 users have given it an average vote of 9.5 out of 10.

Specifications
Focal lenght	20-40 mm
Angle of view	94.5 - 56.8°
Format	FF, APS-C
Max. aperture	f/2.8
Aperture blades	9
Lenses/Groups	17 elements in 13 groups
Min. focus distance	0.30 meters
Reproduction ratio	0.21x
Features
Zoom type	Ring, external
Stabilization	No
Focus	Lens AF motor (non-ultrasonic)
Internal Focus	Yes
Built and notes
Tripod ring	No
Extenders	No
Filters	82 mm
Lens hood	Yes, supplied
Weather sealing	No
Weight	595 g
Dimensions	89 x 107 mm
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Reviews

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The following opinions have been automatically translated with Google Translate.

Torino

sent on 26 Giugno 2016

Pros: focal length, colorimetry outstanding and excellent sharpness, quality 'money

Cons: suffers from lateral flare, present chromatic aberrations

Opinion: It bought two years ago to 250 euro, replaced with Nikkor 24-120 f 4 for greater focal length requirements, but the comparison of the colorimetry I immediately regretted selling it, to be a goal of the generation before and really special, fast autofocus and very accurately processed raw files, really crystal colors, has a bit 'of chromatic aberrations that are easily solved in raw room, value for' really good price, compared with the latest commercially goals looks good doing absolutely save a lot of money, recommended l ' buying who does not want svenarsi for a wide-angle zoom of this tipo.rn

Fotografiamonaco

sent on 30 Dicembre 2013

Pros: LENS WITH GREAT PERFORMANCE AT HIGH SHARPNESS f4.0 FF STICKER ON SENSOR BUT SLIGHTLY solvable WITH CORRECTION LENS CAMERA RAW EXCELLENT CONSTRUCTION Gera MF VERY COMFORTABLE COMPLEX SYSTEM ZOOM ErnEFFICACE (NN shuffling YOU NOTICE THE LENS) f2.8 TO THE FUZZY AND CREAM VERY GOOD PERSON WITH REMOVAL OF THE BACKGROUND AND FAST AF 'PRECISE (HIGHLY RECOMMEND THE PURCHASE OF OPTICAL QST XK perfomante LANDSCAPING AND VERY GOOD FOR VIDEO)

Cons: FOCUS NOISY, VERY chubby DIAM FILTERS 82 (VERY EXPENSIVE) STICKER ON A 20 MM FF 1 AND LIGHTWEIGHT SCIA aberration assay (solvable) WEIGHT WITH THE FILTERS ARE WANDERING AROUND 610gr NOT 'SIGGILLATO AND NOT' TROPICALISED DISCONTINUED "NO SPARE PARTS"

Opinion: I POSSESS THE CANON 6D IN THE PAST I HAD THE TAMRON 28-75 2.8 F OR CHANGED WITH OPTICAL XK QST FANTASTIC VERY COMFORTABLE X ME REALIZE THAT VIDEO BECAUSE THE USE OF FOCAL LENGTH 20 MM IN RELATION TO THE MANUAL FOCUS AND 'THE ACE OF FILM WHY CAN MAKER 'RULE WITH A LOT OF SKILL AND GIVES YOU THE OPPORTUNITY' TO NOT TOO FUOCHEGGIARE ZOOM 1 RUNS WITH ABSOLUTE PRECISION VERY SENSITIVE AND NN zooms CLICK QST LENS HAS THE VALUE OF € 290 IF FOUND AROUND

user30919

sent on 19 Novembre 2013

Pros: Robustness and excellent sharpness and brightness, constant 2.8

Cons: Maybe a little too heavy

Opinion: I got this Sigma 20-40 in 2007 for the 400D and the 40D I use it now and 6D. I must say that I had a great feeling for the sharpness and high brightness. AF only flaw is a bit noisy and slightly slower in areas not particularly bright and overweight which I remedied attrezzandomi with shoulder carrying strap

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Sigma 20-40mm f/2.8 EX DG : Specifications and Opinions

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Photos taken with Sigma 20-40mm f/2.8 EX DG