Dan Keaton
Well-known member
Dear Paul,
Yes, we should be able to record 2K Raw, at lower frame rates, using just one 240 GB, 480 GB, or 960 GB SSD.
As I calculate it, 120 fps in 2K Raw, 12-Bit Linear, is around 385 Megabytes per second.
This is just slightly over our desired limit (which establishes a safety margin) of 380 Megabytes per second.)
And these calculations do not always consider the small header for each Cinema DNG file.
We will know more as we proceed with our testing, but up to 100 or more frames per second should be safe.
Edit: We are currently recording 2K Raw, 12-Bits Linear, from the FS700, to just one SSD, at 120 fps, so we are planning to support up to 120 fps to one SSD.
Later, we may find that 380 Megabytes per second is too conservative, if so, then we may be able to support 120 fps in this mode.
In case you have not heard, we are now successfully recording from the FS700, 240 fps, in 12-Bit Linear Raw, continuously, and the resulting Cinema DNG files are playing back perfectly in a normal Non-Linear Editor. I understand that the images are looking very good.
Respectfully,
Dan Keaton
Convergent Design
Yes, we should be able to record 2K Raw, at lower frame rates, using just one 240 GB, 480 GB, or 960 GB SSD.
As I calculate it, 120 fps in 2K Raw, 12-Bit Linear, is around 385 Megabytes per second.
This is just slightly over our desired limit (which establishes a safety margin) of 380 Megabytes per second.)
And these calculations do not always consider the small header for each Cinema DNG file.
We will know more as we proceed with our testing, but up to 100 or more frames per second should be safe.
Edit: We are currently recording 2K Raw, 12-Bits Linear, from the FS700, to just one SSD, at 120 fps, so we are planning to support up to 120 fps to one SSD.
Later, we may find that 380 Megabytes per second is too conservative, if so, then we may be able to support 120 fps in this mode.
In case you have not heard, we are now successfully recording from the FS700, 240 fps, in 12-Bit Linear Raw, continuously, and the resulting Cinema DNG files are playing back perfectly in a normal Non-Linear Editor. I understand that the images are looking very good.
Respectfully,
Dan Keaton
Convergent Design
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