>I recorded the sound of my D800 shooting at max frame rate in >FX and DX mode. With the grip and standard EN-EL15 everything >is like indicated in the manual.
>I wish I had the EN-EL18 to compare in DX mode but the battery >charger is just too expensive for me to justify the upgrade
Yeah, and the grip is just too expensive to justify for me, though I have the charger (well, grip plus another battery or two). I have Four of the EN-EL15 (long story involving finding some cheap at a going-out-of-business Best buy during the shortage from the recall).
So together we can justify one. Sadly sharing across the Atlantic is probably not going to work.