Robbie Carman
Forum Replies Created
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ditto. I would also like to see BM adapt a Diamond type display for RGB gamut errors
Robbie Carman
—————-
Colorist and Author
Check out my new Books:
Video Made on a Mac
Apple Pro Training Series DVDSP
From Still To Motion -
Bill
Reading your original post I think the thing was that it was kind of confusing and exceptionally metaphorical. Not to take way from what you were/are saying I think Rich’s response was one of confusion and what the F are you saying. It took me a couple read through’s to get at the gist of what your saying. I think I get it but let me ask you if I have it:
You’d like to see a podcast devoted to the exploration of why use these cameras? Or another way of saying that is are these cameras just hype and a bandwagon device or are they serious tools. Also you’d like to see a discussion of the practicality/businesses sense of using these cameras. Is this getting closer to the original meaning of your post?
Knowing Rich as well as I do and also knowing the tone that can be implied in email/forum posts I know that he didn’t mean to belittle your thoughts just confused.
Robbie Carman
—————-
Colorist and Author
Check out my new Books:
Video Made on a Mac
Apple Pro Training Series DVDSP
From Still To Motion -
my dual 285 setup is rocking my world. If you can find the 285s its well worth the investment.
Robbie Carman
—————-
Colorist and Author
Check out my new Books:
Video Made on a Mac
Apple Pro Training Series DVDSP
From Still To Motion -
Rafael – we’re saying the same thing about 4:1:1 as far as 4:2:0 you are technically correct about its still being 25% of the original chroma. However 4:2:0 is a little more complex as there is variation on the vertical and horizontal sampling depending on format. However I agree that my 4:2:2/4:0:0 way of explaining it might be a little to “simple”
Robbie Carman
—————-
Colorist and Author
Check out my new Books:
Video Made on a Mac
Apple Pro Training Series DVDSP
From Still To Motion -
[Thomas Morter-Laing] “I’d like to clarify that this is different to colour space which refers to how much of the gamut is seen. (Is that correct?)”
Correct. Some times you’ll see color space incorrectly stated as Y’UV although this is technically incorrect for component digital video, Y’CbCr (which is used for digital video ) encoding of luma and chroma are separate: Y’ is gamma weighted luma and CbCr are the chroma difference channels. Because of this separation chroma subsampling can into play to provide further compression ability.
Because our eyes are much more sensitive to luma (brightness) the Y’ component is hardly ever reduced (a notable exception is HDCAM (not SR) which is 3:1:1) however chroma often is often reduced severely. 4:2:2 means that chroma is being sampled half as often as luma 4:1:1 a quarter as often and 4:2:0 color is sampled 4:2:2/4:0:0 alternating lines
What makes matters a little more confusing is REC 709. For the purposes of color REC 709 describes a gamut. That gamut for REC 709 is significantly smaller then what Y’CbCr is really capable of.
Robbie Carman
—————-
Colorist and Author
Check out my new Books:
Video Made on a Mac
Apple Pro Training Series DVDSP
From Still To Motion -
[Blase Theodore] “Have you tested that yet?”
10 min grade heavy RED project starting Friday I’ll report back
Robbie Carman
—————-
Colorist and Author
Check out my new Books:
Video Made on a Mac
Apple Pro Training Series DVDSP
From Still To Motion -
Blase
I can tell you from my experience that everything with the cubix is working perfectly. I have the Cubix in Slot 1 and GT120 in Slot 2 (per Rohit’s suggestion). Decklink in Slot 3 and my Fibre Card in Slot 4. In the Cubix I have 2 GTX 285s and believe it or not you can actually squeeze in a rocket (its very tight and I’m slightly worried about heat from the adjacent GTX) but it works even though the Config guide says it should be blocked.
Performance has been awesome. I got the setup mainly for stereo work that I’m now doing and the occasional RED job. I’ve been floored with the overall performance. I have not experienced any of the bottle necks you seem to be worried about in my config.
Robbie Carman
—————-
Colorist and Author
Check out my new Books:
Video Made on a Mac
Apple Pro Training Series DVDSP
From Still To Motion -
seriously sean don’t worry about it. Since I couldn’t get the regular 285 side by side with the OC one. Its difficult for me to tell if it’s “faster” but comparing some things like node count and render speed it seems like it might be 2%-3% faster but thats not really a big deal
Robbie Carman
—————-
Colorist and Author
Check out my new Books:
Video Made on a Mac
Apple Pro Training Series DVDSP
From Still To Motion -
[Alex Borges] “with an overcloked one you always run the risk of frying it.”
keep in mind thought that the overclocked versions are factory overclocked by Nvidia. So yes the’ll run hotter but in the months of using the OC version (and now 2 with the cubix) they don’t seem to be a problem
Robbie Carman
—————-
Colorist and Author
Check out my new Books:
Video Made on a Mac
Apple Pro Training Series DVDSP
From Still To Motion -
sean if you can get it locally (which I could not) and cheaper seems like a pretty easy choice. I would agree with ULI that the 285 esp the over clocked runs a little hotter but nothing crazy that I’ve worried about it
Robbie Carman
—————-
Colorist and Author
Check out my new Books:
Video Made on a Mac
Apple Pro Training Series DVDSP
From Still To Motion