I really enjoy shooting with a very shallow depth of field. I believe this is called macro shooting but, if I am wrong please correct me. I am using a D100 with a 28-100mm F/3.5-5.6G. I have taken several that I have been pleased with but, I have noticed a few problems. What would be a few lenses to look into? I would like to have some type of zoom capability. Since I am not going out to buy this tomorrow price is flexible but I do believe less than a $1,000 is my limit no matter what.