Talk:480i
From Wikipedia, the free encyclopedia
[edit] 480i never means fields
Some people prefer to use the line number of fields, which is half that of frames, in their nomenclature and thus call this mode 240i, likewise 288i and 540i.
Nobody who knows what they are talking about does this. If people start using 540i to refer to the field rate, it will permanently wreck the terminology.Algr 04:36, 21 June 2006 (UTC)
- This was added in an attempt to stop the 240i edits by User:Brazil4Linux and his various sockpuppets. Didn’t work, though, because as it turned out he was not misguided, but is a tenacious vandal. The use of frame lines is nevertheless not ubiquitous—[1] received some attention for example—, although it seems to be sort of a silently accepted standard in Wikipedia. I think in this non-prominent form the sentence does no harm. It is even required as long as 240i etc. are redirects to the other respective articles. — Christoph Päper 11:03, 21 June 2006 (UTC)
- I did a Google search on 240i, and it turned up nothing but Wikipedia. That's no good. I agree it might make sense to refer to interlaced video systems by their field count, but the 'XXXi' phrasing would become ambiguous if you did that. For example, some of the prototype versions of HDTV had 960 interlaced lines per frame. That would be called 480i if you counted by fileds! If you want to call 1080i by the field line count, then it ought to have a different letter, perhaps 540d. Algr 05:16, 26 June 2006 (UTC)
[edit] 480i 680x480 and 576i 576x720
Hello. Well I am not a pro in all that stuff here (just came by to read some about pal conv. issue) but the article says that 480i has 680x480 and 576i has 576x720. Now that makes 4:3 on 480i and 3.75:3 which makes sense (about the pal issue) BUT the picture here says something different. Namely that NTSC is also 720 - now I think the picture is wrong but anyway I just wanted to know / say some about that. If I got something wrong here please tell me :-D
http://en.wikipedia.org/wiki/Image:Common_Video_Resolutions.svg Linking didn't work so I just post the url here - its the picture at the bottom. SECAM PAL and NTSC share that picture.
Moooitic