I was using a Nikkor AF-S 55-200mm lens, goes for about $200, but I got it on Ebay for $100 brand new in box. It's a pretty good lens. I also have a 55-300mm w/macro Sigma lens that my friend sold me for $100, but that's manual focus only. So I use that for shots where things aren't moving around. ^_^
Hey Polycount, I just released my newest alpha pack. In this pack you can find more than 100 alphas of rocks, wood, cracks, damages, seamless textures and more goodies! Also includes 13 zbrush brushes. Artstation: https://www.artstation.com/artwork/XrYG0 Get it now: http://gum.co/stlzdjr