Hello So I'm getting NikonD7000 in a week. It's my first DSLR, and I'm having trouble choosing the lens. I mainly shoot my dogs, wildlife and my family. Could someone explain to me what's the difference between: - Tamron SP 70-200mm f2.8 Di VC USD and - Tamron SP AF 70-200mm f2.8 Di LD [IF] Macro The first one is twice as expensive than the latter. Is it because the latter is a macro lense and without VC? Anyway which option would be better? 1. Buying Nikon AF-S 50mm f1.4G or Sigma 50mm f1.4 EX DG HSM AF-S/AF-D and saving for Tamron SP 70-200mm f2.8 Di VC USD (can't afford it atm ) or 2. Buying Tamron SP AF 70-200mm f2.8 Di LD [IF] Macro Thanks!!!