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I was under the impression that BRAW scales normally, e.g. shooting in 4K is 4x the amount of data as HD. But according to the Ursa Cine calculator, thats not quite the case; it seems 9K and 12K get a boost in data rate in Q1 and Q0.
Here’s what I was able to figure out using normalized* data from the calculator. For a linearly scaled format, every result would be roughly the same at each setting.
Q0
12K: 22.47 MB/s
9K: 22.84
8K: 13.37
4K: 13.55
Q1
12K: 11.68
9K: 11.82
8K: 8.27
4K: 8.38
Q3
12K: 5.50
9K: 5.49
8K: 5.51
4K: 5.59
Q5
12K: 4.11
9K: 4.12
8K: 4.14
4K: 4.27
*I factor in the difference between the real resolution/FPS and an arbitrary one (I chose 1080p30) to get the numbers comparable/normalized. Obviously feel free to take issue if you think the methodology is flawed.
Could someone confirm or deny these findings?
EDIT: I just did the same test with numbers from the Ursa Mini Pro 12K manual and it seems even more inconsistent, though granted the manual doesn't specify which aspect ratio it means for "4K", "8K" etc, so I assumed DCI:
Q0
12K: 23.49
8K: 32.94
6K: 24.08
4K: 62.50
Q1
12K: 20.06
8K: 21.44
6K: 20.06
4K: 47.78
Q3
12K: 14.25
8K: 14.61
6K: 14.44
4K: 38.61
Q5
12K: 8.19
8K: 12.69
6K: 8.39
4K: 31.11
Here’s what I was able to figure out using normalized* data from the calculator. For a linearly scaled format, every result would be roughly the same at each setting.
Q0
12K: 22.47 MB/s
9K: 22.84
8K: 13.37
4K: 13.55
Q1
12K: 11.68
9K: 11.82
8K: 8.27
4K: 8.38
Q3
12K: 5.50
9K: 5.49
8K: 5.51
4K: 5.59
Q5
12K: 4.11
9K: 4.12
8K: 4.14
4K: 4.27
*I factor in the difference between the real resolution/FPS and an arbitrary one (I chose 1080p30) to get the numbers comparable/normalized. Obviously feel free to take issue if you think the methodology is flawed.
Could someone confirm or deny these findings?
EDIT: I just did the same test with numbers from the Ursa Mini Pro 12K manual and it seems even more inconsistent, though granted the manual doesn't specify which aspect ratio it means for "4K", "8K" etc, so I assumed DCI:
Q0
12K: 23.49
8K: 32.94
6K: 24.08
4K: 62.50
Q1
12K: 20.06
8K: 21.44
6K: 20.06
4K: 47.78
Q3
12K: 14.25
8K: 14.61
6K: 14.44
4K: 38.61
Q5
12K: 8.19
8K: 12.69
6K: 8.39
4K: 31.11
Last edited by Zak Ray on Fri May 24, 2024 2:07 pm, edited 1 time in total.