What is a good 2x lenses for my D3200? I have been using a coolpix point and shoot, and decided to upgrade to a slr. The learning curve is slowing me down now. Going on vacation in about a month and I've got to get on the ball. I have a 18-50mm and a 70-300mm zoom. What other lenses will help me get great pictures at an affordable cost? Thank you for your help. I have downloaded Moose's cheat tips for my 18-50mm lens.