In my notes the Sony section was listed Sony / Nikon, but there was non-Nikon pattern in there and I removed the Nikon label to reduce inconsistency. Then I didn't update the Nikon section to include the other pattern. :) Should be fixed now. If you notice anything else, let me know!
>>CMay+(OP)
DSC_XXXX originates from Sony's "Digital Still Cameras" but has been used by multiple other manufacturers. Besides Nikon, my old Canon DLSR also used this naming scheme by default.