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Sigma 10-20 mm f/3.5 EX DC HSM

Pictures:
Specifications:
Manufacturer Sigma
Model 10-20 mm f/3.5 EX DC HSM
Lens style Wide angle zoom
Focal length 10 - 20 mm
Maximum aperture f/3.5
Angle of view 102.4 - 63.8 o
Closest focusing distance 0.24 m
Maximum magnification 1:6.6
Minimum aperture 22
Number of diaphragm blades 7
Auto focus type HSM
Lens Construction 13 elements / 10 groups
Filter diameter 82 mm
Macro No
Available mounts Nikon F
Sony A / Minolta
Sigma
Pentax K
Canon EF-S
Dimensions 87.3 x 88.2 mm
Weight 540 g
Additional information
Average rating (8 owners reviews)
Build quality
Optical quality
Value for money

Overall

4.25 Good
Owners reviews (8)
  1. Carl Jones
    Carl Jones 24 March 2015, 16:46
    Build quality
    Optical quality
    Value for money

    Overall

    IP 109.155.x.x
    Owner since: 6 months
    Price: £300
    User profile: Amateur

    Cons: The filter size is large and therefore a little expensive and restricted.

    Pros: My example is very good with just a little vignetting but it really depends on the subject. I have it mounted to a Sony A77 and I really like the results. Build quality is very good and the optical quality comes a close second. It has a wide focal length.

    Summary: I bought it new for a very good price, I don't think I would have bought it for the full recommended retail price. More than satisfied with my purchase.

  2. voldemar07
    voldemar07 15 September 2012, 04:15
    Build quality
    Optical quality
    Value for money

    Overall

    IP 81.222.x.x
    Owner since: 3 months
    Price: $450
    User profile: Semipro

    Cons: Some CA at 3.5 in corners. No after 4.5. Could be less distortion in corners at 10-12 mm.

    Pros: Fast and accurate focus. Sharp in center even open at 3.5 at 10 mm. Very reasonable sharpness in corners after 7.1. Overall picture quality better compared to Sigma 10-20/4.5-5.6 and Sony 11-18/4.5-5.6.

    Summary: I bought it instead of Sigma 10-20/4.5-5.6 with good discount price. For such price very good wide zoom lens for crop cameras. When buy try to check a few copied due bad Sigma quality control. My copy is really perfect. For higher price check Tokina 11-16/2.8, but for me zoom range is not enough

  3. Michael Shea
    Michael Shea 8 September 2012, 12:14
    Build quality
    Optical quality
    Value for money

    Overall

    IP 94.175.x.x
    Owner since: 6 months
    Price: £299
    User profile: Amateur

    Cons: Corner muddiness at widest focal lengths, i.e. 10-12mm.

    Pros: Vibrant colours; excellent contrast; consistent centre sharpness and reliable auto-focus accuracy.

    Summary: Disappointing corner results seen at full resolution, although a big improvement by f5.6 and from 13mm or so. I've gained little or nothing from the constant aperture and the lens overall compares badly with the Olympus ZD 11-22mm lens it effectively replaced. One of the better options for Pentax though. The discounted price was a major factor for me and I feel the RRP is excessive.

  4. Prodigynumber1
    Prodigynumber1 17 July 2010, 21:03
    Build quality
    Optical quality
    Value for money

    Overall

    IP 166.137.x.x
    Owner since: 1 month
    Price: $440
    User profile: Semipro

    Cons: Serious vignetting at 10mm no matter the aperture, but slightly better stopped down, but not much.

    Pros: One of the widest lenses on the market for DX format. Constant aperture. One of the best close-focus distances amongst these lenses as well. If you're at 10pm and stopped down, your depth of field is so deep that you can literally have your subject two inches from the glass!

    Summary: If you understand it's limitations, and know how to correct them in your software, this lens is great!

  5. CCC
    CCC 21 May 2010, 08:20
    Build quality
    Optical quality
    Value for money

    Overall

    IP 218.1.x.x
    Owner since: 1 month
    Price: $650
    User profile: Amateur

    Cons: Price

    Pros: Maximum aperture is good

    Summary: good but expencive

  6. jack
    jack 22 January 2010, 04:57
    Build quality
    Optical quality
    Value for money

    Overall

    IP 67.212.x.x
    Owner since: 3 months
    Price: $650
    User profile: Amateur

    Cons: corners are too soft at 10mm

    Pros: sharp at 14mm~20mm, and center area at 10mm

    Summary: I noticed that other people paid $800 ~ 950 for it. At that price I'd say it's not worth. But me I paid $650 so it's not that bad.

  7. Mike
    Mike 5 October 2009, 18:05
    Build quality
    Optical quality
    Value for money

    Overall

    IP 211.27.x.x
    Owner since: 1 month
    Price: $800
    User profile: Amateur

    Cons: Very Soft at f3.5 Doesn't improve a lot until f8

    Pros: Build quality

    Summary: I found this lens to be very soft. Maybe i just purchased a poor copy, but its typical of Sigma quality control. You never know what your going to get. Pity, as I really wanted to like this lens. Ive learnt my lesson, never buy sigma. Stick with a Cannon or Nikon instead.

  8. pami
    pami 28 September 2009, 07:15
    Build quality
    Optical quality
    Value for money

    Overall

    IP 217.192.x.x
    Owner since: 1 month
    Price: 950CHF
    User profile: Amateur

    Cons: Stiff manual focus

    Pros: very sharp

    Summary: Best uw zoom at the moment for DX

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