XHA1 color sampling
- Thread starter armisiano
- Start date
Taylor Rudd
Veteran
HDV is 4:2:0
mvansomeren
Well-known member
I would like to point out that the A1's sensors do sample at 4:2:2. The signal is compressed to HDV for tape at 4:2:0. However, if you capture from the component output of the A1 then you get 4:2:2. Also, if you have the G1 you can get the 4:2:2 from the SDI as well. Remember that they are essentially the same camera except for the SDI/Genlock features of the G1.
Of course capturing from the component output brings it own set of challenges...i.e., being tethered to a PC, etc.
Of course capturing from the component output brings it own set of challenges...i.e., being tethered to a PC, etc.
mvansomeren
Well-known member
Somewhere in this forum Barry Green did a comparison with the different color depths. I recommend you do a search.
If I remember correctly 4:2:0 did better than 4:1:1 which is what the DVX uses.
If I remember correctly 4:2:0 did better than 4:1:1 which is what the DVX uses.
Elton
Veteran
For SD, you indeed do get better color sampling than a DVX because if you shoot A1 HDV you have roughly 720x540 chroma samples to play with, which can be crammed into a better SD codec than DV if you do a good downconversion in post. Heck, you even get decent 720p chroma if you do things right in post.
mvansomeren
Well-known member
Not exactly. You need a card like the intensity pro plugged into a PC. Using the software that comes with the card, you capture from the component out of the A1.