Scarlet - 100MB/s Redcode?

Robert M Wright · August 7th, 2008, 02:32 PM

I was just looking at the specs on Scarlet in a news article and then looked at the RED website. It says up to 100MB/sec REDCODE RAW... to dual CF. I've got to think that's a mistake and should read 100Mb/sec... Is it?

Jon Fairhurst · August 7th, 2008, 03:15 PM

Yeah, I saw that as well. Unless RED has invented a new CF technology, it's a small "b".

Steven White · August 7th, 2008, 04:30 PM

RedCODE currently has a maximum limit at 36 MB/s. Scarlet and Epic are expected to increase that to 100 MB/s. Most expectations are that this bit rate will apply to higher frame-rates (120 fps and 180 fps). These are Bytes, not bits.

Even so, current RedCODE 36 is not a walk in the park for most current compact flash cards. RED does supply RED certified flash cards - and there are numerous reports of difficulty with compact flash cards that are not RED certified. It may be that there are no flash cards available to support the bitrates, but it indicates the camera is being designed to have that kind of data through-put.

Robert M Wright · August 7th, 2008, 04:40 PM

As far as I know, there's no such thing as a CF card that can write at 50MB/s (or even close).

Craig Parkes · August 7th, 2008, 06:48 PM

"As far as I know, there's no such thing as a CF card that can write at 50MB/s (or even close)."

As with all things with RED - the key word missing from this sentence is 'yet'. There's no such thing as a CF card that can write at 50MB (or 100MB/s) yet.

Red doesn't work on Todays technology, it works on tomorrows.

Jason Ramsey · August 7th, 2008, 06:57 PM

It is indeed BYTES. MB. The 100 will probably only apply to the burst o 180fps, which is not sustained.

data rates will vary depending on your framerate.

There aren't many CF cards at all (right now) that can handle those data rates. The only 16 gig card spec'd to be fast enough for RED One is one that they had custom built to their specs by someone.

In the 8 gig arena, I think you have two options. Beyond that, there are slower options that might work some of the time, or will work with the slower redcode, etc...

cards get faster, cheaper, and larger all of the time though. RED seems to think that there will be 32 gig cards capable of handling Scarlet's data rate, by the time it is released. We shall see.

Late,r
Jason

Jon Fairhurst · August 7th, 2008, 07:09 PM

100 MB burst. That's believable. And dang fast!

Noah Kadner · August 8th, 2008, 08:59 AM

Also a fast little ram buffer would probably make up for any shortfalls...

Noah

Henrik Andersson · August 13th, 2008, 08:31 AM

Quote:

Originally Posted by Robert M Wright

As far as I know, there's no such thing as a CF card that can write at 50MB/s (or even close).

The new Fuji CF-card support 46MB/s (310x). I don't remember of that is true for the write speed though.

The Nikon D3 and D300 DSLRs have a practical measured write speed of 30MB/s now ... according to RobG.

And as others have pointed out, the 100MB/s could be the burst mode ... but if I don't remember wrong is that 180fps at full resolution while the continuous write speed should support 120fps, so we are still talking about 67MB/s in non-burst mode if the same rawcode format is used.

/Henrik

Sean James · September 7th, 2008, 12:33 AM

Quote:

Originally Posted by Robert M Wright

As far as I know, there's no such thing as a CF card that can write at 50MB/s (or even close).

Lexar Professional UDMA has 300x speed = 45Mb/sec.

August 7th, 2008, 02:32 PM	#1
Robert M Wright Trustee Join Date: Jan 2006 Location: Watkins, Minnesota (USA) Posts: 1,294	Scarlet - 100MB/s Redcode? I was just looking at the specs on Scarlet in a news article and then looked at the RED website. It says up to 100MB/sec REDCODE RAW... to dual CF. I've got to think that's a mistake and should read 100Mb/sec... Is it?

August 7th, 2008, 03:15 PM	#2
Jon Fairhurst Trustee Join Date: May 2006 Location: Camas, WA, USA Posts: 1,072	Yeah, I saw that as well. Unless RED has invented a new CF technology, it's a small "b". __________________ Jon Fairhurst FRESH FILMS WEEKLY AT COLONELCRUSH.COM.

August 7th, 2008, 07:09 PM	#7
Jon Fairhurst Trustee Join Date: May 2006 Location: Camas, WA, USA Posts: 1,072	100 MB burst. That's believable. And dang fast! __________________ Jon Fairhurst FRESH FILMS WEEKLY AT COLONELCRUSH.COM.

August 8th, 2008, 08:59 AM	#8
Noah Kadner Better than Halle Berry Join Date: Feb 2004 Location: Los Angeles, CA Posts: 194	Also a fast little ram buffer would probably make up for any shortfalls... Noah __________________ Visit http://www.callboxlive.com/store/storemain.php for Final Cut Studio training DVDs from Noah! My RED Blog- http://twenty398.com

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August 7th, 2008, 04:30 PM	#3
Steven White Major Player Join Date: Nov 2004 Location: Canada Posts: 547	RedCODE currently has a maximum limit at 36 MB/s. Scarlet and Epic are expected to increase that to 100 MB/s. Most expectations are that this bit rate will apply to higher frame-rates (120 fps and 180 fps). These are Bytes, not bits. Even so, current RedCODE 36 is not a walk in the park for most current compact flash cards. RED does supply RED certified flash cards - and there are numerous reports of difficulty with compact flash cards that are not RED certified. It may be that there are no flash cards available to support the bitrates, but it indicates the camera is being designed to have that kind of data through-put.

August 7th, 2008, 04:40 PM	#4
Robert M Wright Trustee Join Date: Jan 2006 Location: Watkins, Minnesota (USA) Posts: 1,294	As far as I know, there's no such thing as a CF card that can write at 50MB/s (or even close).

August 7th, 2008, 06:48 PM	#5
Craig Parkes Regular Crew Join Date: Dec 2006 Location: Auckland, New Zealand Posts: 125	"As far as I know, there's no such thing as a CF card that can write at 50MB/s (or even close)." As with all things with RED - the key word missing from this sentence is 'yet'. There's no such thing as a CF card that can write at 50MB (or 100MB/s) yet. Red doesn't work on Todays technology, it works on tomorrows.

August 7th, 2008, 06:57 PM	#6
Jason Ramsey RED / Scarlet / DVXUser Join Date: Nov 2006 Location: Troy, AL Posts: 28	It is indeed BYTES. MB. The 100 will probably only apply to the burst o 180fps, which is not sustained. data rates will vary depending on your framerate. There aren't many CF cards at all (right now) that can handle those data rates. The only 16 gig card spec'd to be fast enough for RED One is one that they had custom built to their specs by someone. In the 8 gig arena, I think you have two options. Beyond that, there are slower options that might work some of the time, or will work with the slower redcode, etc... cards get faster, cheaper, and larger all of the time though. RED seems to think that there will be 32 gig cards capable of handling Scarlet's data rate, by the time it is released. We shall see. Late,r Jason