Elsie N
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I have a few positive observations about http://www.reduser.net/forum/showthread.php?117540-Dragon-Dynamic-Range-Test-21-stop-chart by Gavin Greenwalt and Stacey Spears POST of their DSC Labs XYLA-21 test chart with an “Epic Dragon Camera”! Specially their post at; http://i111.photobucket.com/albums/...on_Dynamic_range_v10_zpsc2bc2d8e.png~original
It pretty much collaborates what I’ve been saying for a while, 14 T-Stops is a lot of Stops; T 0.75 all the way to T 64! The progression of 17 T-stops with 14 T Stops in the center T 0.7 to T 64, that’s well beyond the existing range of any Lens I know of (T 0.35 – T 0.5 - T 0.7 –T 1 - T 1.4 - T 2 - T 2.8 – T 4 - T 5.6 - T 8 - T 11 - T 16 - T 22 - T 32 - T 44 – T 64 – T 88) are power of the square root of √2. Whiting that range you can slide your Exposure Range and be covered in practically and situation during Production, with some tweaking to be done afterwards in Post-Production. It kinds of follows the line of what I said in; “POST #335 above”. So I want to extend my “Heartfelt Thanks” to “Gavin Greenwalt and Stacey Spears”! We actually we don’t know where the “Dynamic Range Argument” will ends, but it will be way beyond 14 T Stops! And not a 2k or 3.4K Image its 6K for now, and beyond, who know!
“SIDE NOTE: I SAID BEFORE IN A PREVIOUS POST; “Arri has a New 3.4K Resolution Sensor (not 4K) THAT THEY ARE STILL TESTING! It’s the OPEN GATE on the Alexa; meaning that they are opening their “Current Sensor” all the way to the edges and top! While the “Red Epic 6K Dragon Camera” takes a giant step forward with a New 6K Sensor, it has a Dynamic Range of 16 or 17+ stops; ISO/ASA 250/800/2000 (you choose how much you want to cover above and below the Dynamic Range); Color Depth and many more things! The “Red Digital Cinema Company” has seemed to have outreached the Arri Alexa again! The “6K Dragon Sensor” actually has a New Chip, while Arri seems to be trying to figure out if-they could use an “Open Gate” to achieve 3.4K (the old chip). The Arri you have to “Up-Rezz” to get to 4K the “Epic 6K Dragon Camera” you have to “Down-Rezz” to 4K! And the “Alexa” COST MUCH MORE than the “Red Epic 6K Camera” you have to pay MORE FOR LESS, does that make any sense?” And is not here yet!
I agree with Elsie, I’m only interested WITH WHAT YOU CAN DO with the “Epic Dragon Camera” (and whatever comes afterwards) BECAUSE of its “REDCODE R3D Files”; that’s where the “Secret Sauce” is-in “Meta Data”, not baked-in (and it’s Copyright), and there is ALWAYS going to be an upgrade to the “Secret Sauce” with Graeme continued correction of everything, INCLUDING “Dynamic Range” for FREE; that’s backwards compatible to the “Red One”! That’s the Red Business Plan for “Digital Cinema”! That’s not say I look at the Arri Brochure every so often, because they do make other things, including the Fine Arri Master Primes!
It’s as-if Red took over Kodak on the development process at a more advance rate, but on the “Digital Cinema” side! Maybe one day Arri will come up with a True 4K UDH Camera, but then Red would have left them on the “Dust”! 4K TV Monitors are here, and think of all those 2K Images Shot on the Arri Alexa; what a preventable waste! I suppose the current Arri Model works on a “Limited Basis”, if you shoot with the Cooke Anamorphic/i Prime Lenses at a 2.1 Aspect Ratio and use the entire Arri Sensor, but the “Red Epic Dragon Camera” is leaving them behind on Resolution, Color Space, with Red you get a thick negative that you can exploit in “Post-Production”.
Humberto Rivera
Humberto, that's an interesting way of thinking about lens/sensor compatability... food for thought.