The maximum number of shots that can be taken in a single burst in continuous release modes can be set to any value between 1 and 100. Note that regardless of the option selected, there is no limit to the number of photos that can be taken in a single burst when a shutter speed of 1 s or slower is selected in mode S or M.
The Memory Buffer
Regardless of the option selected for Custom Setting d2, shooting will slow when the memory buffer fills (r00).