He means that it can be both in this case. It is hard to judge seeing what we see. The thing is: the bigger your aperture (smaller f-number), the less DOF you get. So if you want to shoot indoors in lowlight and still have a nice DOF, you need to take a flash or a longer shuttertime. That's the only ways you can correct it...


Also when there isn't a lot of light present, the AF can be somewhat less accurate as well. I suggest you trysome outdoor photo's to judge the image sharpness. And not only at f2.8, but try a few values. Hope this helps a little





I see some people are faster then me :P





By the way, also try lower iso values. iso 3200 isn't really nice and when you use the incamera highiso noise reduction, your photo's will soften a little. Try iso 100 or so with noise reduction off. Then you can really see the true sharpness of this lens. I love this lens too