As a member of NPS (Nikon Professional Services), Nikon occasionally loans me their latest products to try out. This weekend they sent me the AMAZING new AFS Nikkor 200mm f2.0 with Vibration Reduction technology. Affectionately known as the “Fat Boy” among pro circles, you can see why in this comparison of three lenses that achieve 200mm focal lengths. The Fat Boy is on the right…duh! With a maximum aperture of 2.0, it’s a full stop brighter than my favorite 70-200mm f2.8 zoom on the left. That means it can capture an image in a dimly lit environment that’s TWICE as dark as the 70-200mm f2.8 can. For comparison, in the middle I have my wonderful 200-400mm f4.0 zoom. This is my favorite “long glass” or Super Telephoto lens. The Fat Boy can see in an environment that’s FOUR times as dark as the 200-400 f4.0 can. Obviously, each piece of equipment has their advantages and disadvantages. But I certainly can say I thoroughly enjoyed playing with this ultra sharp, ultra fast, ultra bright (and ultra heavy) wonder of modern technology. The Fat Boy is the fastest 200mm lens currently produced by ANY camera manufacturer!