I may have mentioned this before, but maybe not. Although it's not a terribly convenient length for walking around on DX the 28-105, owing to its close focusing and generally decent behavior, is a very nice lens for freehand bug chasing. The 85/2.8 and 55/3.5, being primes, are nicer in some ways, but the 55 is a bit short, and the 85 heavy and hard to manipulate fast. When I just want to go out and see what's buzzing around, the 28-105 is a good one to take.