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Sigma AF 18-50 mm f/ 2.8 EX DC D Lens

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Sigma AF 18-50 mm f/ 2.8 EX DC D lens

Sigma AF 18-50 mm f/ 2.8 EX DC D lens

Sigma AF 18-50 mm f/ 2.8 EX DC D lens

Sigma AF 18-50 mm f/ 2.8 EX DC D lens

MTF-charts

Sigma AF 18-50 mm f/ 2.8 EX DC D MTF Chart

Optical design

Sigma AF 18-50 mm f/ 2.8 EX DC D optical design

Format: APS-C (crop)

Type: Zoom lens

Focusing: Auto Focus (AF)

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

Optical design: 15 elements in 13 groups. Of these, 2 low-dispersion and 2 aspheric.

User reviews (0)

Photos (6)

Tests (0)

Owners (3)

Views (3845)

Average price: $233

Specifications:

Focal lengthMax. apertureMin. apertureBladesMin. Focus (m.)Filter Ø (mm.)Weight (gr/oz)Length (mm/in)
18mm - 50mmf/2.8f/2270.267445/15,781/3,2

Additional information:

The Sigma AF 18-50 mm f/ 2.8 EX DC D  is a standard fast zoom lens with a constant lens speed for SLR cameras of popular autofocus APS-C or 4/3 systems.

EX series is a professional line of  Sigma lenses, remarkable for its high mechanical and optic quality.

DC series is a line of  Sigma lenses optimized for digital SLR APS-C cameras.

The Sigma AF 18-50 mm f/ 2.8 EX DC  is lightweight and compact. At the same time it has rather good optical characteristics. When wide open, it slightly softens an image.

Its optical scheme includes SLD and aspherical lenses, which makes it possible to successfully minimize principal aberrations. The focusing is internal, the front element does not rotate during focus operations.

In 2006 the lens was discontinued and replaced with the Sigma AF 18-50 mm f/ 2.8 EX DC Macro.


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Posted by: SharkDD   Date of publication: 29.06.2011



Photos taken with this lens Sigma AF 18-50 mm f/ 2.8 EX DC D:


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Autor: SharkDD
5 0 1157

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Autor: SharkDD
5 0 1094

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Autor: SharkDD
5 0 1252

test
Autor: shtorm
3 0 1474

Mechanical quality4.001
Optical quality3.001
Usability4.001
Pricing / Value4.001
Bokeh3.001
Overall lens rating
3.60

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