Scarlet X Data Sheet

[Phil Holland]

I guess I need to test both Red 2k and Red HD recording with my favorite S-16mm zoom lens on an Epic,
comparing also different Redcodes to make up my mind (before buying any S-16mm glass).

This is likely the safest way to go. The chart's pixel dimensions are dead on, so that data is accurate. Since 2k and 1080p have the same vertical resolution I don't think you're going to see a significant difference in the resolution between the two.

As for the coverage, I was told 2k "is a bit larger than S16". With that information I imagine some lenses will work and some will not depending on how tight their projected image circle is. That advantage you have is that you're shooting at 1:9:1 and often that edge vignetting you'll see what you push lens coverage too far will be outside of the captured frame. But again, tests are the way to go.

[J Davis]

Red have stated that 5120px x 2700px sensor is 27.7mm x 14.6mm so 2k should be 11.1mm x 5.8mm, this makes it smaller than s16, there should be no vignetting. Please correct me if I'm wrong though.

[Phil Holland]

Red have stated that 5120px x 2700px sensor is 27.7mm x 14.6mm so 2k should be 11.1mm x 5.8mm, this makes it smaller than s16, there should be no vignetting. Please correct me if I'm wrong though.

If there's any new news on that front from what I've been told, I'll upgrade the graphic. Currently, I was told otherwise. We'll know for sure very soon.

**Update, I've added the REDCODE Compression/Max FPS graphic to the first post that Jim shared during the Scarlet X release at the head of this thread. At this point I'm trying to consolidate information so there is less confusion about camera specifications and capabilities.

Again, I'll update and add information as it comes or changes as long as I'm breathing and a Scarlet X shooter :)

[J Davis]

cool. I just realized that I should post my reference for the dimensions in mm that I posted !

http://reduser.net/forum/showthread....l=1#post727926

[Carter Cammack]

From another thread, "Sensor Coverage on Scarlet" David Fuller has tested some s-16 lenses on Epic. Some work. Some won't even mount.
So as soon as possible we need to post a database of what s-16 lenses will cover 2K and 3K and mount without interference.

"I can tell you for sure that a Zeiss 11-110 S16 lens works great on an Epic. It covers more than 2k, but not quite 3k except maybe at the long end. At the narrowest point of its image circle, it covers a 16x9 frame that's 2400 pixels wide. That gives you resolution in the Alexa ballpark when down sampled to 1920x1080.

The 25mm and 16 mm Zeiss MK I superspeeds cover more. Very close to 3K, but not quite. The Bad news is that the 12mm and 9.5mm don't clear the OLPF. The Angineux 5.9mm also won't clear the OLPF on an Epic. "

[Humberto Rivera]

Phil, you’re indeed a “Rock Star”! I just discovered your charts. What you’ve done is truly amazing, especially now that it has gone through a process of suggestions. I’ve got a “group of visuals” that are useable for the Scarlet for sure, but also for the Epic. Thank you!

Humberto Rivera

[Noah Yuan-Vogel]

I would suggest even including all advertised available compression ratios. It may be of interest to some doing run and gun and/or budget/data conscious that they could set up their Scarlet to get several hours or RAW recording out of their 64GB SSD in 18:1 compression at 3k or 2k.

[Kamal Kyrala]

I would suggest even including all advertised available compression ratios. It may be of interest to some doing run and gun and/or budget/data conscious that they could set up their Scarlet to get several hours or RAW recording out of their 64GB SSD in 18:1 compression at 3k or 2k.

I thought RED was artificially limiting the available compression ratios to prevent higher FPS at certain resolutions?

[Martin Beek]

Hi all.

I'd be very interested to know with what resolution and compression ratio some of the top cinema productions were shot (with the Epic), such as Spiderman, Contagion and others.

Thanks and regards,

Martin Beek
Marvels Film
twitter.com/martinbeek
http://marvelsfilm.wordpress.com


http://Scarleteer.Com

[Noah Yuan-Vogel]

I thought RED was artificially limiting the available compression ratios to prevent higher FPS at certain resolutions?

I have not heard anything about that, but that would not make sense if you consider the information they have given. Clearly compression ratio is not the limiting factor for higher framerates: The spec sheet for scarlet says 3:1 to 18:1 compression options are available but their table showing the lowest compression available in all resolution/fps modes does not list anything close to 18:1 for any of them. This seems to tell us that compression ratio is only a limiting factor for frame rates if you are choosing between 3-7:1 options in certain modes, beyond that, the limitation on the framerate must be one that is due to pre-compression pixel processing speeds or software limitations set by RED. I certainly hope all compression modes are available in all frame sizes and frame rates, but it seems from that table that you will never unlock higher framerates by shooting >7:1 compression.