thanks alot saralonde for this post i agree with you they are probably the best for they're price
but i just wanted to put to light that vendors and the companies who make lense usually tend to exagerate the performance of their lense.you have to remember you can't only rely on the numbers and stats given by the company who really just want you to buy their products.you have to rely mainly on tests proven and proven right again to get a better idea of the performance of the lense.its just this, vendors will always exagerate how good their product is.
