At work I use a Canon EOS Rebel XSi and a Canon EOS 50D. The lenses are a 70-300mm, 28-135mm, 18-55mm and a 50mm.
My problem is I can't get close ups.
Occasionally I have to document bad welds or other metallographic anomalies and have to get up close and personal; like 1 - 3 inches away. What lens should I buy?
Dan

