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I don't know the Nikon lenses, but I know focal lengths on full-frame cameras. My kit is 15/2.8 fisheye, 24-105/f4, 70-200/f4 and 500/f4, with 1.4x and 2.0x Teleconverters and a 25mm extension tube.
Given the exceptional high-ISO performance of the D810, I'd suggest seriously considering f/4 lenses over f/2.8, in general. Use higher ISO to get your speed, not a heavier, larger lens. If you "must" have a big aperture at some focal length, like 80, 90 or 100mm for portraits, then consider a prime.
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