Questions about 1080i & 1080p

Archived from groups: alt.tv.tech.hdtv (More info?)

mark wrote:
> If I had two HDV cameras. One that recorded 1080i (like the sony FX1) and
> another that recorded 1080p.

If you are doing PC-based editing and/or playback, you'll likey be doing
1080i60
(60 fields per second, which is conceptually 30 frames per second) or
720/1080p30
max (30 frames per second). Someone else can comment, but previous
generation
prosumer camcorders maxed at 720p30 when doing progressive, and at best
today
they likely only do 720p60 or 1080p30, and I could well imagine they still
max
out at 720p30.

Unless you have an extremely fancy PC setup that does de-interlacing, you
will see
a combing and tearing effect during fast motion scenes with 1080i. It looks
bad.

With 720/1080p30 max content, you'll notice a slow jerky effect, especially
during
fast motion scenes.

If I could have my ideal *but cheap* HD camcorder, I'd look for 720p60
first, then
1080i60. In the 1080i60 case, in the extreme it can be de-interlaced and
made to
look a bit better. No matter the resolution, I would avoid p30 as too jerky.

Thomas Gilg