looks like the 28-300mm might be getting purchased unless someone can persuade me the 70-300 af-p is the better option !!
Not on D700 it isn't (well maybe isn't)...
From Ken Rockwell (yes I know but the compatibility information is usually right)...
YES! Everything works great on:
FX: as of July 2017, it works great on the D5, D750, D610 and D600.
DX: as of July 2017, it works great on the D500, D7500, D5600, D5500, D5300, D3400 and D3300, but on DX cameras, just get the 70-300 AFP VR DX instead for half the price if it works on your model.
Mostly works on:
These cameras reset focus to infinity as they wake up. This is only a problem if you want to use a remote timer, expecting the camera to stay focused where you left it, otherwise no problem at all.
FX: D4, D4S, D3, D3X, D3S, Df, D810, D810A, D800 or D800e and D700.
DX: D300, D300S, D7200, D7100, D7000 and D5200.
NO! Useless on:
It won't focus manually or automatically on any of these, making this lens totally useless on them:
Any of the D1 series, any of the D2 series, D200, D100, D90, D80, any of the D70 series, D60, D50, any of the D40 series, D5100, D5000, D3200, D3100 or
D3000 and won't work on any 35mm camera.
Have you considered the Tamron 70-300 (Di VC USD version) instead?