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Sigma DC 10-20 mm f/ 4-5.6 EX HSM Lens

Pictures

Sigma DC 10-20 mm f/ 4-5.6 EX HSM lens

Sigma DC 10-20 mm f/ 4-5.6 EX HSM lens

Sigma DC 10-20 mm f/ 4-5.6 EX HSM lens

MTF-charts

Sigma DC 10-20 mm f/ 4-5.6 EX HSM MTF Chart

Sigma DC 10-20 mm f/ 4-5.6 EX HSM MTF Chart

Optical design

Sigma DC 10-20 mm f/ 4-5.6 EX HSM optical design

Format: APS-C (crop)

Type: Zoom lens

Focusing: Auto Focus (AF)

Lens mounts: Canon EF, EF-S, Sony A / Minolta A, Nikon F (FX, DX), 4/3 (Four/Thirds), Pentax K, Sigma SA

First year of production: 2005

Optical design: 14/10 (3 AS, 3 SLD)

Features: Ultra-Sonic Motor
User reviews (2)

Photos (9)

Tests (0)

Owners (18)

Views (5237)

Average price: $570

Specifications:

Focal lengthMax. apertureMin. apertureBladesMin. Focus (m.)Filter Ø (mm.)Weight (gr/oz)Length (mm/in)
10mm - 20mmf/4.0 - f/5.6f/2260.2477470/16,683.5/3,3

Additional information:

The Sigma 10-20 mm f/ 4-5.6 EX DC HSM

  • Diagonal angle of view 102.4º- 63.8º (1.7x Sigma SD)
  • Diagonal angle of view 106.6°- 67.7° (1.6х Canon EFs)
  • Diagonal angle of view 109.7°- 70.7° (1.5x Nikon DX)
  • Diameter 81 mm
  • Max. magnification 1:6.7
  • Hood (petal, bayonet, LH825-04) is included with the lens.

The Sigma 10-20mm F4-5.6 EX DC HSMis a superwide-angle 2x zoom lens, specially designed for digital SLR  APS-C or 4/3 cameras, which provide their owners with a high demand range of focal lengths 15-30 mm and maximum angle up to 110°.

The optical scheme of the lens consists of three aspherical elements (two hybrid and one molded) for correction of distortion and astigmatism and three SLD elements  for correction of chromatic aberration. Multi-coating of optic elements reduces flare and halation, and increases contrast.

The Hyper-Sonic Motor of the AF drive provides noiseless and high-speed focusing and the possibility of constant manual focusing  without switching to the manual mode. Nikon low-end models are equipped with a built-in motor. There is no HSM for the Sony and Pentax bayonet mounts.

The system of internal focusing eliminates the front lens rotation and provides convenient use of a petal hood and polarized filters, as well as focusing at minimum distance 24 cm throughout the entire zoom range.

The lens becomes approximately 1 cm longer while zooming from 10 mm to 20 mm. .

The Sigma 10-20mm F4-5.6 EX DC HSM pros:

  • excellent image quality at the center of the frame,
  • good control of chromatic aberration,
  • slight astigmatism,
  • well controlled distortion (lines are not bound),
  • effective and quiet autofocus,
  • resistant to back light,
  • 3-5 years of warranty.

The Sigma 10-20mm F4-5.6 EX DC HSM cons:

  • very high vignetting throughout all focal lengths even when stopping down,
  • average image quality in the corners,
  • dark zoom.

Links to online resources:
PDF Files:
Posted by: dv   Date of publication: 28.10.2010



Photos taken with this lens Sigma DC 10-20 mm f/ 4-5.6 EX HSM:


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Autor: yury570
5 0 924

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Autor: yury570
5 0 1301

On boat
Autor: Tavi
5 0 1376

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Autor: yury570
5 0 976

Mechanical quality4.789
Optical quality4.119
Usability4.799
Pricing / Value4.229
Bokeh3.577
Overall lens rating
4.29

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