64t clip on You-Tube. Nice stuff!

[mattias]

So as you say the whole arguement depends on whether or not digibeta oversamples.

for christ's sake, there's no whether.

(i wrote a very long reply, but that would probably just confuse people more, so i'll stick with the no. i can't believe how even *that* can be misunderstood)

/matt

[low grade moron]

that doesn't sound right. are you watching the two above each other on an lcd screen by any chance? try putting them side by side. you're not supposed to notice any difference in color and contrast whatsoever, had there been any i would have done something wrong. digibeta and dv use the exact same color space.

/matt

wrong.

digibeta uses 4:2:2 while DV uses 4:1:1

to lay it out simply so that you may understand this concept, it means that in a 4:4:4 color space format, each pixel is precisely coloured. in a 4:2:2 color space format, colour is averaged every second pixel. with 4:1:1 colour is averaged every 4th pixel.

there are perhaps several thousand sources to look at on the internet to assist your understanding of this basic video principle. here is the first one that popped up with a search a minute ago, and it has some nice, easy to understand graphics: http://www.larryjordan.biz/articles/lj_compress.html

as for your bizarre "comparison" using a digital camera still and "transforming" it to "digibeta" and "dv", you have provided only proof that you understand even less about video formats and computer graphics, than you do about even the basic concept of colour spaces, and have misled not only yourself, but are arguing wildly in an effort to mislead others.

[mattias]

ah, tim. how nice to see you. or could it be that trevor found his way back under this new flattering name?

digibeta uses 4:2:2 while DV uses 4:1:1

sigh, i give up. could everyone wanting to comment on this thread please look up the words they indend to use before doing so? thank you.

http://en.wikipedia.org/wiki/Color_space

EDIT: i realize that some people use the term to describe color subsampling schemes, and i'm sorry for any confusion. it should be obvious from the context in which i started using the word in this thread that i mean it in the original sense. when you resize and compress an image within the same colorspace the colors, contrast and brightness should always remain exactly the same if done correctly. :TIDE

as for your bizarre "comparison" using a digital camera still and "transforming" it to "digibeta" and "dv", you have provided only proof that you understand even less about video formats and computer graphics

please elaborate. would the example have worked better for you if i had put the still on an fcp timeline and output to tape then captured back? as far as i can tell saving a file with dv compression and outputting it to dv tape results in the exact same thing, and the same with uncompressed and sdi/digibeta. i capture from and output to both dv and digibeta on a regular basis and this is my experience. if you know more i'd be happy to learn.

/matt

[Scotness]

So as you say the whole arguement depends on whether or not digibeta oversamples.

for christ's sake, there's no whether.

/matt

Okay I'll take your word for it! :lol:

[pbrstreetgang]

Watched the clip on RAGE last night, looks great, even in wide screen