Mark-P
01-09-2008, 06:52 PM
How much compression is applied when shooting:
- SD
- DVCPro HD 1080
- DVCPro HD 720
William_Robinette
01-09-2008, 07:04 PM
DV SD is compressed 5:1 with 4:1:1 color.
(I believe) DVCpro100 (1080) is 3.6ish:1 with 4:2:2 color.
That will get you started but others will chime in with the correct figures.
Filmbuff28
01-09-2008, 10:15 PM
According to the manual for the HVX the compression rate for all settings is about 6.7. So DvcPro (25) starts out as 25Mb/s and is compressed by 6.7 to about 3.7Mb/s. DvcPro 50 is about double that 7.4Mb/s and DvcPro HD is roughly double that at about 14.8 Mb/s. These figures vary slightly depending on what you are shooting, what settings, and what frame rate. So if you are shooting 720pn (native) then you will have a starting data rate of either 50 or 40 Mb/s (30fps or 24fps). So your resulting compressed rate would resemble DvcPro 50 rates.