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Sigma AF 18-50 mm f/ 2.8-4.5 DC OS HSM Lens

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Sigma AF 18-50 mm f/ 2.8-4.5 DC OS HSM lens

Format: APS-C (crop)

Type: Zoom lens

Focusing: Auto Focus (AF)

Lens mounts: Canon EF, EF-S, Canon EF, EF-S, Sony A / Minolta A, Sony A / Minolta A, Nikon F (FX, DX), Nikon F (FX, DX), Pentax K, Pentax K

Optical design: 16 elements in 12 groups

Features: Ultra-Sonic Motor, Optical stabilisation
User reviews (1)

Photos (1)

Tests (0)

Owners (1)

Views (4477)

Average price: $300


Focal lengthMax. apertureMin. apertureBladesMin. Focus (m.)Filter Ø (mm.)Weight (gr/oz)Length (mm/in)
18mm - 50mmf/2.8 - f/4.5f/2270.367395/13,988.6/3,5

Additional information:

The Sigma AF 18-50 mm f/ 2.8-4.5 DC OS HSM

  • Angle of view 69.3°- 27.9°
  • Diameter 74 mm
  • Equivalent focal length 27 – 75 mm.

The Sigma AF 18-50mm f/2.8-4.5 DC OS HSMis a standard zoom lens for small-format (APS-C, DX) DSRL cameras of main autofocus systems.

PDF Files:
Posted by: mysterion   Date of publication: 07.10.2011

Photos taken with this lens Sigma AF 18-50 mm f/ 2.8-4.5 DC OS HSM:

Autor: NerveNet
3 0 871

Mechanical quality4.002
Optical quality3.502
Pricing / Value4.002
Overall lens rating

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Owner reviews: Sigma AF 18-50 mm f/ 2.8-4.5 DC OS HSM

NerveNet 26.06.2017 01:09:14
Period of use: 1 year


Half stop wider than Canon's kit lens.

HSM silent and fast motor.

Optical stabilisation.



Mine showed a yellow cast in some prictures in certain situations.


I used this lens as a natural upgrade from my Sigma 18-50mm f/3.5-5.6 DC lens.

I gained half a stop, it is also a sharper lens than the previous Sigma I mention.

Then, in some pictures a yellow cast in colors could be seen in indoor pictures. I did some other test and finally sold the lens and moved to another lens.

This lens is very affordable.