One of my old favorites was the 35-70 f/3.3-4.5 macro zoom. Small, well built, and about as sharp as any zoom was back in the days of manual focus. I beat mine up for years and have since passed it on to my nephew. He's taken some great shots with it as well. The obvious disadvantage is the speed, but for the price the image quality is pretty amazing, especially at f5.6-f11.