Will the MB-D100 grip I have on my D100 work on a D300(s)? My guess is no, but it's worth an ask!

Unlikely I'd have thought.. the D300 is quite a bit bigger…. but I'd ask on Talk Photography for a sensible and accurate answer!

Paul

No.

The D300 has a new battery pack / vertical grip, the MB-D10. This new grip no longer requires the removal of the internal battery or battery door instead connecting to a pair of terminals on the base of the camera (normally protected by rubber covers, removed for this shot). This allows the internal battery to be used in conjunction with the batteries in the MB-D10. This MB-D10 is more ergonomic than previous grips and integrates much better with the body, it also supports a wider range of batteries; the EN-EL3e, the large EN-EL4a used in the D3 as well as AA batteries. (Note that the MB-D10 plus batteries other than the EN-EL3e are required to achieve the full eight frames per second shooting speed).

Thanks!