I'll bet someone out there knows the answer.
Yesterday I did some testing with the CGO3+ at various resolutions and frame rates and exposures and shutter speeds. What I found was totally unexpected. I understand how the video bit rate is effected by the resolution and frame rate. But what I discovered was that the video bit rate was also effected by the ISO and shutter speed. Here's some data:
Yesterday I did some testing with the CGO3+ at various resolutions and frame rates and exposures and shutter speeds. What I found was totally unexpected. I understand how the video bit rate is effected by the resolution and frame rate. But what I discovered was that the video bit rate was also effected by the ISO and shutter speed. Here's some data:
- 1920x1080x60, ISO 100, shutter 1/60: Bit rate 20 Mbps
- 1920x1080x60, ISO 100, shutter 1/125: Bit rate 29 Mbps
- 1920x1080x60, ISO 100, shutter 1/250: Bit rate 32 Mbps
- 1920x1080x60, ISO 400, shutter 1/125: Bit rate 50 Mbps
- 3480x2160x30, Auto, EV -0.5: Bit rate 50 Mbps
- 4096x2160x24, Auto: Bit rate 50 Mbps