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Sigma 18-50 mm f/2.8 EX DC Macro
Pictures:
Specifications:
| Manufacturer | Sigma |
|---|---|
| Model | 18-50 mm f/2.8 EX DC Macro |
| Lens style | Universal zoom |
| Focal length | 18 - 50 mm |
| Maximum aperture | f/2.8 |
| Angle of view | 69.3 - 27.9 o |
| Closest focusing distance | 0.2 m |
| Maximum magnification | 3 |
| Minimum aperture | 22 |
| Number of diaphragm blades | 7 |
| Auto focus type | AF |
| Lens Construction | 15 elements / 13 groups |
| Filter diameter | 72 mm |
| Macro | Yes |
| Available mounts | Nikon F Sigma Pentax K Four Thirds Canon EF-S |
| Dimensions | 85.8 x 79 mm |
| Weight | 450 g |
| Additional information | Special Low Dispersion (SLD) Lenses and Extraordinary Low Dispersion (ELD) Lenses inside Marketed September 2006 |
Owners reviews (7)
Overall
Owner since: 5 years
Price:
User profile: Amateur
Cons: soft corners, yellowish colors
Pros: contrast, great center sharpness, price
Summary: good lens for price
Overall
Owner since: 1 month
Price: $400
User profile: Amateur
Cons: Incredibly soft in center at 2.8. No OS. No manual focus override. Hunts for focus in moderate/low light.
Pros: Well built. Fast auto-focus.
Summary: Shouldn't have purchased. Already sold it. The reviews were correct about center softness at 2.8. I shoot weddings and need tack sharpness in low light conditions. This lens is not for you if sharpness matters at all.
Overall
Owner since: 3 months
Price: 230€
User profile: Semipro
Cons: - Slow AF - No HSM on my Canon - weight
Pros: - Well built - Nice bokeh - good resolution at f2,8 - fine colors - 1:3 Macro ability
Summary: I like it more, than my Tamron 17-50 2,8 which i owned before. It`s a good value for the price Not good for action- photography , because of the slow AF.
Overall
Owner since: 1 year
Price: £320
User profile: Semipro
Cons: Slightly soft at times, miss having permanent manual override on the focus ring like the Nikkors have. Doesn't feel as solid as a Nikkor or as some other Sigma EX lenses. No rubber flange on the mount. Would prefer 17mm, or ideally 16mm, at wide end.
Pros: Price. Mainly good enough performance for small size prints. Good colours. Practical weight and size. Excellent upgrade from kit zoom.
Summary: A good value lens when compared to the offerings from Nikon and Canon. I haven't used the Tamron but I believe this is rated better than the Sigma by most and it has an extra mm at the wide end. If the price drops for the new 17-50mm f2.8 Sigma I will hopefully be buying that lens to replace my 18-50mm. At the moment though, the 18-50mm is great for the price.
Overall
Owner since: 1 month
Price: $449
User profile: Amateur
Cons: Sigma's definition of quality control is not the best, so you may need to have your lens calibrated to your specific body. Mine, for instance, came out of the package back-focusing slightly. Note- this doesn't effect manual focus.
Pros: Great geometry, F2.8 throughout the whole zoom range, and a solid finish.
Summary: I use this lens on my Sigma SD14. The combination of a lens and body both designed to detect great detail and produce sharp images sure is a winning combination.
Overall
Owner since: 3 years
Price: GBP 320
User profile: Semipro
Cons: Slightly front-focusing adjusted on the 50D
Pros: Value for money and build quality
Summary: Better than the Sigma 17-70 and Canon 17-85 so I'm happy for the money that I have spent.
Overall
Owner since: 3 years
Price: 400
User profile: Semipro
Cons: Construction Light
Pros: Quality image
Summary: Good