Thread: RED Format Resolutions
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02-02-2007, 08:05 AM
I am just trying to find out the exact resolution to the RED formats. If any of you could fill in the blanks that would be cool:
4.5K = 4520 x 2540
4K = 4096 x ?
2K = 2048 x ?
1080P = 1920 x 1080
720P = 1280 x 720
480P = 720 x 480
Just 4K and 2K I am not completely sure of due to seeing different numbers being listed on different websights. Thanks.
02-02-2007, 10:37 AM
4.5K or 2540p = 4520 x 2540
4K = 4096 x 2304
2K = 2048 x 1152
1080 & 720 numbers are correct (as was 4.5K)
We do not support 480 (NTSC) or 576 (PAL). HD and up only.
There are various 4K & 2K resolutions in use. It depends on aspect ratios and a couple of other things. Since our sensor has a 16:9 shape the vertical resolution for 4K & 2K is 4096 and 2048 divided by 16:9.
In post you can crop that to other 4K & 2K "standards" or any aspect ratio you want / need.
02-02-2007, 11:16 AM
Thanks. I did not mean to put 480P, but just out of habit I did.
02-02-2007, 01:55 PM
Rob, what is the full sensor resolution? I'm referring to the 4.9K overscan... 4900x2580? I know it can't be captured.
02-03-2007, 02:10 AM
Yes, 4900 x 2580. I wouldn't really use the term overscan for it though.
02-03-2007, 11:47 AM
Look-around?
02-04-2007, 04:33 AM
Look-around uses the 4.5K area
#8
Max frame size
02-04-2007, 09:50 AM
Rob is correct 4520 x 2540 is the max area, and its used for look around when you are shooting 4K, 2K, 1080p, 720p etc...
The pixels outside this maximum imaging area are matted off so that no light can illuminate them. Then we use their output to perform an automatic black level compensation - which you typically need to do manually on a professional level 3 chip CDD camera.
02-04-2007, 04:26 PM
Wow Stuart that is very clever. So the red camera is automatically black balanced at 7.5ire at start up?
02-04-2007, 05:42 PM
One would hope 0IRE (or whatever the digital equivalent is), since RED doesn't speak SD...Originally Posted by tj williams
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