Hi Toke,

I stand corrected on the 4:2:0 sampling, it appears that the even/odd lines do not refer to field lines but are even/odd per each field (lines 1 and 3, 2 and 4, as you put it).

This means that extracting to 720 x 540 must produce an interlaced image IF all chroma samples are to be retained, ie just drop the 4:0:0 lines, but keep the 4:2:2 from EACH field.

That also means that to 'drop-every-other-field' to get 540p will still leave you with 4:2:0 sampling - so a smarter de-interlace method should be used to maximise the chroma info present on the 1080i ts.

Any ideas on how DVFilm / MB handle 4:2:0 ?

Hi Toke,

<< How can you be so sure? >>

Well, for one thing, if these cameras offered true progressive scan, Sony would say so. Instead, they have insisted all along that they are NOT progressive scan. Why would they lie about it?

<< Do you have specs for that ccd? >>

Yes. See http://www.linuxelectrons.com/article.php/20040907063048435. Hope this helps,

<<<-- Originally posted by Chris Hurd : Hi Toke,

<< How can you be so sure? >>

Well, for one thing, if these cameras offered true progressive scan, Sony would say so. Instead, they have insisted all along that they are NOT progressive scan. Why would they lie about it?

<< Do you have specs for that ccd? >>

Yes. See http://www.linuxelectrons.com/article.php/20040907063048435. Hope this helps, -->>>

Sony says that camera does not offer progressive scan.
Has somebody from Sony said anything about ccd chip?

Designing these chips and building production lines for them is so extremely expensive, that Sony needs to use several years same chips.
If they have been clever enough, they have made a chip that also supports progressive scan, so next year when competititor brings out progressive camera and nobody wants interlaced anymore, they can also bring out new progressive camera and still use the same chips.
This is of course speculation, but it makes sense?

Nothing about interlaced/progressive in that article...
And of course Sony wouldn't tell about hindering their new precious model. Anyway this is just what they (and others) are doing along all their product lines. Cheaper cameras can have more expensive camera's capabilities just by tweaking their software.

Do you also believe that Sony is making diffrent ccd's (and chipsets) for HDW-730 than for HDW-900?

Wasn't it about a year a go when cinealta doubled it's sensitivity just by software update?

Man, some people just don't want to see the truth...


This entire thread was B.S. and a big waste of time, just lock it or delete it.

Sorry you feel that way, Donal... but we don't delete threads.

I don't see any reason to lock it but I might edit the thread title.