Hi all- I am getting more fashion work (yay!). Prob is, I'm working with a kit lens and an 80 mm lens for my tighter portrait work. What's the best lens to have for shooting full-length fashion as well as shots from the head to mid-thigh? I'm looking for a lens that won't distort, as I primarily shoot celeb maternity images. I have a D70, if that matters, and a Mamiya Pro-TL, with a kit lens and a 150 mm lens. Thanks to all in advance!