I bought a used copy of this lens .. perhaps that is part of the problem but I am less than thrilled with it.
I like the fact that it is fast. I love photographing in low light. But, even in medium light, this lens struggles to focus and it is not sharp at all. My 18-55mm kit lens kicks it's butt for IQ. It is one of those lenses that you use only on rare occasions and mostly leave it on a shelf at home. I will probably not use this one very much as I have several old manual focus lenses that are far better that this lens. From now on, Sigma is a lens that I will avoid. I know some people have had good luck with their lenses but there are a lot of people out there complaining about the inconsistent quality. Its just not worth the risk to me.
I bought a used copy of this lens.. perhaps that is part of the problem but I am less than thrilled with it. I like the fact that it is fast. I love photographing in low light. But, even in medium light, this lens struggles to focus and it is not sharp at all. My 18-55mm kit lens kicks it's butt for IQ. It is one of those lenses that you use only on rare occasions and mostly leave it on a shelf at home. I will probably not use this one very much as I have several old manual focus lenses that are far better that this lens. From now on, Sigma is a lens that I will avoid. I know some people have had good luck with their lenses but there are a lot of people out there complaining about the inconsistent quality. Its just not worth the risk to me.