Sigma 18-50mm f/3.5-5.6 DC AF

Last updated (18 July’10):
– Review by Photozone

The Sigma 18-50mm f/3.5-5.6 DC AF features 18-50mm at focal length with maximum aperture of F/3.5-5.6. The lens construction has 8 elements in 8 groups and has diagonal angle of view at 76.5 degrees. Closest focusing distance at 0.25m and has a filter size of 58mm. The Sigma 18-50mm f/3.5-5.6 DC AF lens weighs 8.6 ounces and it measures 2.4 inches in diameter and 3 inches long.

Sigma 18-50mm f/3.5-5.6 DC AF
Overall Rating: ★★★★☆ | Latest Price Info

Expert Reviews

Sigma 18-50mm f/3.5-5.6 DC AF Reviews

Photozone reviews the Sigma 18-50mm f/3.5-5.6 DC AF and writes;
“If you limit your aperture settings to f/5.6 and smaller the resolution figures are pretty impressive and quite comparable to much more pricey zooms out there. Sigma was smart enough to avoid more ambitious max. apertures where optical problems are a magnitude more pronounced. Naturally Sigma had to implement some compromises on the mechanical side like a rotating front element and a rotating focus ring in AF mode but other than that the build quality of this little lens is actually quite decent.”
Rating: ★★★★☆

User Opinions

Sigma 18-50mm f/3.5-5.6 DC AF User Reviews

Basic zoom lens, for cheap | Rating: ★★★☆☆
“I am an amateur, so I can’t tell if there is any distortion at either end of the zoom range, or in the middle. I haven’t seen any significant chromatic aberration yet, but I expect there to be some considering how cheap this is… If you are on a tight budget, this may be for you, otherwise, steer clear. There are other, better lenses out there (but they will cost you more).” – by Tbone

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Sigma 18-50mm f/3.5-5.6 DC AF Sample Photos

Sigma 18-50mm f/3.5-5.6 DC AF Sample Photos @
Sigma 18-50mm f/3.5-5.6 DC AF Sample Photos @
Sigma 18-50mm f/3.5-5.6 DC AF Sample Photos @
Sigma 18-50mm f/3.5-5.6 DC AF Sample Photos @
Sigma 18-50mm f/3.5-5.6 DC AF Sample Photos @

Features & Specifications

Sigma 18-50mm f/3.5-5.6 DC AF Specifications

Sigma 18-50mm F3.5-5.6 DC Lens for Canon SLR Digital Camera 521-101 – This zoom lens was exclusively designed to suit the characteristics of digital SLR cameras. The image circle was designed to match the size of the image sensors of digital SLR cameras, and this produced a compact lens with a maximum diameter of 60mm (2.3in.), overall length of 67.5mm (2.6in.) and weight of only 245gr (8.6 ounces). It has a variable angle of view of 69.3degree~27.9degree. The use of aspherical lenses provides correction for various aberrations throughout the entire zoom range and produce high level of optical performance. 18-50mm F3.5-5.6 DC lens has a minimum focusing distance of 25cm (9.8in.) at all focal lengths and is capable of macro photography with a maximum magnification ratio of 1:3.5.

Digital cameras having image sensors larger than APS-C size, and 35mm cameras, should not be used with these lenses. If such cameras are used, severe vignetting in the images may result. The angle of view varies depending on the camera the lens is mounted on Aroma System – Pre-brewing cycle injects hot water into ground coffee to maximize flavor extraction Rapid Steam – No waiting between frothing milk with Pannarello attachment and brewing espresso Two programmable brew buttons Removable 57 oz water tank Swivel base for convenient rotation Removable drip tray and dreg drawer for easy cleaning 15-bar pressure pump Unit Dimensions – 13 W x 19 D x 14.5 H; Weight – 20 lbs.

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