Thread: Tennis on 1080i
View Single Post
Old July 10th 17, 04:45 PM posted to
external usenet poster
Posts: 1,344
Default Tennis on 1080i

On Mon, 10 Jul 2017 15:34:23 +0100, Mark Carver

On 10/07/2017 15:13, Scott wrote:
How come the tennis on terrestrial HD is being shown in 1080i? I
thought 1080p was used for fast moving images and 1080i for relatively
static shots.

DTT doesn't have the bandwidth to do 1080-50p, it can only do 1080-25p
or 1080-50i. 1080-25p is used on DTT when fields 1 and 2 are the same,
which is not the the case with tennis.

720-50p would have the bandwidth on DTT, and that would give the desired
temporal resolution, but not spacial

Thanks for the reply but unfortunately I do not understand it !!!

Are fields 1 and 2 alternate scans? Is interlaced better for
fast-moving images, and have I just got it the wrong way round?