Also, why 100Mbps Ethernet?? 1.) It records to SD card. Ethernet is just used for live preview, not production footage. 2.) The bottleneck is the internal buf

Also, why 100Mbps Ethernet?? 1.) It records to SD card. Ethernet is just used for live preview, not production footage. 2.) The bottleneck is the internal buffer. (and H.264 encoding) Gigabit ethernet wouldn't be fast enough to stream uncompressed high-speed video. Upgrading to either 10 gigabit ethernet (expensive!) or realtime 1000FPS H.264 encoding (really expensive!) would break the $5,000 budget. cool the sensor to lower the noise floor and thus require less light Difficult... A high speed camera obviously has to have very short exposure times in order to work at all. (Can't get faster than 2FPS with a 1/2s exposure time) The general rule of thumb is that you can trade off one "stop" in either direction-- 1/100, f/4, ISO200 is the same as 1/50 f/5.6 ISO200 is the same as 1/100, f/5.6, ISO400. My guess is that even with heroic cooling (liquid nitrogen) you'd only get from the usual wildly excessive lighting needed for high-speed cameras, down to merely "really bright." You'd never get to a point where you can light a scene with just indoor lighting.