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Sigma 28-70 mm f/2.8 EX DG

Manufacturer Sigma
Model 28-70 mm f/2.8 EX DG
Lens style Universal zoom
Focal length 28 - 70 mm
Maximum aperture f/2.8
Angle of view 75.4 - 34.4 o
Closest focusing distance 0.4 m
Maximum magnification 1:4.5
Minimum aperture 32
Number of diaphragm blades 9
Auto focus type AF
Lens Construction 15 elements / 12 groups
Filter diameter 67 mm
Macro No
Available mounts Canon EF
Nikon F
Sony A / Minolta
Contax & Yashica
Dimensions 74 x 87 mm
Weight 510 g
Additional information
Average rating (2 owners reviews)
Build quality
Optical quality
Value for money


3.33 Average
Owners reviews (2)
  1. joe
    joe 23 November 2013, 19:40
    Build quality
    Optical quality
    Value for money


    IP 31.212.x.x
    Owner since: 1 year
    Price: 300
    User profile: Amateur

    Cons: for such a high price expected sharpness until corners not satisfying, especially wide open on wide angle, CA's

    Pros: stopped down a good lens

    Summary: because of high price and because lens afford to be stopped down for very good results low rating

  2. MaxTax
    MaxTax 22 July 2013, 17:45
    Build quality
    Optical quality
    Value for money


    IP 131.82.x.x
    Owner since: 3 years
    Price: $230 USD
    User profile: Semipro

    Cons: Not the sharpest lens wide open (few 2.8 zooms are). Not a big problem as slight edge blur is often pleasing on Bridal portraits.

    Pros: Fantastic Sigma EX construction. Can take more abuse than other independant brands. I'll be using this lens for a long time to come. A bit sharper than my boss' 28-75 Tamron (at most stops) and MUCH better than my first generation Sigma 2.8 28-70.

    Summary: I shoot alot with this lens at weddings and use it to make money. Small groups, table shots, portraits, this lens is on my Pentax unless I'm shooting candids or need something wide for large group shots.

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