A D4 is 1340 grams, a 70-200 is 1470 grams, so nearly equal weight. If you use the tripod collar, the bayonet has to deal with exactly the same weight relations, because on the other side of the bayonet is a body of nearly 3 pounds, with flash even much more. The Nikon bayonet can carry much more weight than you think. Hello, I own a 70-200 F2.8 VR II, which is a great lens. 47 Nikon Software; 26 Nikon Deals; 760 General Discussions; 49 Gear Reviews; 180 Other Manufacturers; 105 How do you beat it? Here are some photos from previous 70-200mm f2.8 lens reviews we’ve done. Mark II The Pros and Cons of a 70-200mm f4 Lens “I don’t care about that,” is what one friend Lenses with maximum apertures of f2.8 allow the camera to use all high precision sensors. In low light or other situations that are hostile to autofocus, that’s a big deal. Lenses with a maximum aperture of f4.0 use only the center focus sensor in its “high precision” mode, and use the other sensors in their “horizontal line” only mode. Your DXO comparison is between the old F 2.8 vs. The F mount 70-200 f/4. The new Z is significantly sharper than the old F 2.8. I actually posted this exact question a few days ago. I bought the F mount 70-200 f/4. It is quite a bit sharper than the 24-200, VR works excellent, AF is fast and accurate on a Z7. Earlier this year my 80-200 f2.8 broke (well, I broke it by dropping on concrete). Nikon's 70-200mm f/2.8 VR II was too expensive, could not find used VR I in good condition so I ended up buying 70-200 2.8 stabilized sigma. Sigma turned out to be a very nice lens with faster and more accurate autofocus on my D300 and additional benefit of good SteveCooper wrote: I can't comment on the new Sigma or the new Nikon. I CAN tell you that I've had older versions of the 70-200 f/2.8 from Sigma and Tamron, and I finally was able to purchase a used Nikon VRII version and it exceeded my expectations. The colors on the 70-200 f4 VR are Nikon classic! I'd only get the cheaper 2.8 lenses if you plan to do more portraiture work, where the 2.8 at closer distances will give it a bit more subject separation. The 70-200 f4 though is an amazing all-arounder. 2wIy.