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Sigma A 20 mm f/1.4 DG HSM

Pictures:
Specifications:
Manufacturer Sigma
Model A 20 mm f/1.4 DG HSM
Lens style Wide angle
Focal length 20 mm
Maximum aperture f/1.4
Angle of view 94.5 o
Closest focusing distance 0.27 m
Maximum magnification 1:7.1
Minimum aperture 16
Number of diaphragm blades 9
Auto focus type HSM
Lens Construction 15 elements / 11 groups
Filter diameter 0 mm
Macro No
Available mounts Canon EF
Nikon F
Sigma
Dimensions 129.75 x 90.7 mm
Weight 950 g
Additional information Announced: 16.10.2015
Data for Sigma mount
Average rating (2 owners reviews)
Build quality
Optical quality
Value for money

Overall

4.00 Good
Owners reviews (2)
  1. joe
    joe 20 July 2017, 10:10
    Build quality
    Optical quality
    Value for money

    Overall

    IP 87.177.x.x
    Owner since: 1 month
    Price: 400
    User profile: Amateur

    Cons: - not so sharp in the corners - some flare wide open - expensive

    Pros: + really good sharpness in the centre wide open + stopped down better sharpness in the corners

    Summary: this Sigma 1,4/20 lens is a really good performer fpr portrait shooting, but for landscape and architecture shootings you must stop it down, in order to increase sharpness of the edges my Fujinon lenses are much more sharper on my x-e1

  2. lhomme
    lhomme 10 November 2016, 12:21
    Build quality
    Optical quality
    Value for money

    Overall

    IP 195.6.x.x
    Owner since: 1 month
    Price: 700€
    User profile: Semipro

    Cons: very bulky, no filters

    Pros: Ultra fast AF, awesome build quality, performance, creamy bokeh, close focus (27cm)

    Summary: Just got it and tried few shots. I had to put +8 on the focus adjutment on my D610 but as my 50mm, the wide open sharpness is already crazy. The AF is not the quietest but blazing fast. I think it can go from min to max in less than 0.5 seconds. The size is to be considered hardly. I thought is would be larger but in fact, as the hood don't get off, it s pretty long too. It barely fits in my bag. Still, i need to test the field curvature.