Sigma 24-60mm f/2.8 EX DG IF Aspherical ...- User Rating: 
Summary for Sigma 24-60mm f/2.8 EX DG IF Aspherical ...- Wondering if actually an EX
Notes on Sigma 24-60mm f/2.8 EX DG IF Aspherical ...- I read the mixed reviews here on Amazon and figured why not try it. Alot of EX lenses produce great pictures. I took a few hundred pics and as said in other reviews the results were dissappointing. Some pictures turned out sharp and in focus however the majority of them were soft and unuable. I downloaded a calibration sheet and tested all of my lenses. All of my nikon lenses focus point were dead on, however the sigma always focused 3mm short leaving the focus point soft and unsharp. Yes you could crank up the f-stop to eliminate the softness, like a f/ 5.6 but whats the point. I have a cheap nikon D that will shoot @ that range easily and very well. The whole point of buying a f/ 2.8 is so you can shoot @ 2.8 in low lighting and when wanting a shallow depth of field.
Sigma 24-60mm f/2.8 EX DG IF Aspherical ...- User Rating: Summary for Sigma 24-60mm f/2.8 EX DG IF Aspherical ...- Great lens, affordable price
Notes on Sigma 24-60mm f/2.8 EX DG IF Aspherical ...- I use this lens for my D50 and F100. Works great on both. The focus is a bit slower than Nikkor, but the size, durability, and weight of the lens is great for the price. Expect some vignetting when wide open at 24mm (f2.8) on full frame, but no worries for DX. This should be my default zoom lens for many years to come.
Sigma 24-60mm f/2.8 EX DG IF Aspherical ...- User Rating: Summary for Sigma 24-60mm f/2.8 EX DG IF Aspherical ...- Not sharp enough to be worth it
Notes on Sigma 24-60mm f/2.8 EX DG IF Aspherical ...- Tried two copies for Canon AF. Second was sharper than the first, but still not truly sharp. By which I mean, when using f # below 4.5, a printed photo or slightly zoomed in photo (anything you can really look at that's bigger than a quarter of a laptop screen) has very blurry details. Shots were properly focused, sharpness was just poor. With the 2.8 you can get the shotindoors/low-light, but it's nothing better than quick snapshot quality.
The Canon 18-55 that came with the camera was a good value, but this lens is mediocre at the bigger apertures and really provides no advantage over the kit lens.
Sigma 24-60mm f/2.8 EX DG IF Aspherical ...- User Rating: Summary for Sigma 24-60mm f/2.8 EX DG IF Aspherical ...- A Real Deal!
Notes on Sigma 24-60mm f/2.8 EX DG IF Aspherical ...- So maybe I am very lucky. My copy of this lens is superb. Yes there is a difference in sharpness when shooting at 2.8 but it is still very sharp and once you go smaller than the 4's it is SHARPER than comparable nikon lenses.
This lens is quiet, focuses fast and zooms smoothly on my D80. All three of these things are issues others have had but I do not have. Cameta has a good return policy so why not try it at this price? I am happy I decided to go for it and feel like it is one of the best deals in my bag. Please note: (I have several fast pro Nikon lenses I have compared this too when making my review, not just other 3rd party lenses)
Sigma 24-60mm f/2.8 EX DG IF Aspherical ...- User Rating: Summary for Sigma 24-60mm f/2.8 EX DG IF Aspherical ...- Way better than expected
Notes on Sigma 24-60mm f/2.8 EX DG IF Aspherical ...- I know that Sigma is not the best when it come to QC. The sample variations can be huge but if you get a good one they are very good. This lens is very good, reasonably sharp wide open and very sharp stopped down. CA's are controlled and I have had no focusing problems with my D200. For the money it is an excellent value.
