Sometimes I shoot in bursts. Sometimes not. No difference either way. Doubtful that this has anything to do with the camera's buffer filling because the problem only occurs in Commander Mode when the SB-900 is being remotely fired. On-camera I can shoot rapidly with no degradation in recycling speed (other than when the camera buffer and card do become maxed out--but this is a not the same issue as described, and I recognize it as a normal function).
I shoot RAW exclusively but again this isn't effecting the recycling of the flash. It's more of a camera card/buffer relationship, which, as I stated doesn't seem to the root of the problem.
I use NiMh batteries exclusively. All are fresh when when I begin shooting. The problem doesn't seem to be brand-dependent either. I've even used a battery pack (8-NiMH batteries powering the flash) which I was sure would solve the problem but doesn't appear to. This is when I became totally baffled.
>Here are a few more questions/thoughts: > >Are you shooting in bursts? If so, what is D5 set to? That >will limit the number of shots in your bursts. > >Are you shooting Large TIFF? Those will fill up the buffer in >the camera with about 23 shots. Once the buffer is full, even >the fastest memory cards will slow you down a lot. Fast cards >take up to 10 seconds to write RAW or TIFF images. > >What kind of batteries are you using in your flash? Lithium >are really slow, and can take up to 30 seconds to cycle the >flash. Alkaline are slightly better. If your flash were firing >at 1/4th power, you could shoot 4 shots in a burst before the >flash would stop you to recycle, and then there would be a >long wait with lithium or alkeline. For fast recycle time, use >NiMH rechargeables.