Sigma 24-70mm F2.8 IF EX DG HSM A-mount lens review by rockhound
|rockhound#5539 date: Jun-15-2009|
flare control: 5
|ownership:||I own this lens|
|compared to:||Sony/CZ 24-70|
Sigma 24-70 EX DG Macro
|positive:||Very sharp even wide open|
Very smooth zoom
Focus clutch which allows manual focus while in AF.
Price compared to CZ 24-70
|comment:||Very sharp out of the box. The lens seems to focus correctly even under poor lighting conditions. The silence of the focus is a welcome change over the sonewhat noisy screw driven lenses. The focus ring clutch is fantastic as it allows one to fine tune the focus even while the lens is in AF mode.|
The lens feels very solid and very well built. There are no squeaks or rattles and no wobbles anywhere. A couple of nitpicks are that the AF/MF switch feels a bit cheap compared to the CZ and the hood feels a bit lighter duty than previous Sigma hoods.
The lens is much nicer than the previous non-HSM version in that while it is slightly heavier, it is much more compact and silent. However you pay almost double for these convieniences. The image quality is about the same, if you can get a sharp copy of the non-HSM version.
I breifly tested (quick and un-scientific) this lens against the CZ 24-70, in a local shop, and the images each one produces are virtually indistinguishable. The only give away is that the CZ seems to have more neutral colors and the Sigma is a bit warmer, very slightly yellowish.
Currently, the US price of $899 is about half the cost of the CZ and therefore has an excellent price to performace ratio.