With its new cameras, Canon is introducing a C-RAW compressed RAW format. The compressed RAW recordsdata will be processed on the pc in a way as versatile as with uncompressed RAW recordsdata.
Apparently, the compression ratio is roughly 1.75:1. So, the disk area financial savings are big. Additionally, the burst buffer of the digital camera is elevated by at the least 1.75x, maybe much more (successfully) as a result of the digital camera will begin to flush the buffer to the cardboard instantly and never when the buffer is full. The continual taking pictures velocity with full buffer can be elevated too by 1.75x if card-limited.
The C-RAW can be saved within the Canon’s new .CR3 file format. This may counsel that C-RAW recordsdata can not essentially be opened by open-source software program. Nonetheless, the latest Canon cameras anyway at all times use the .CR3 file format, even for uncompressed RAW recordsdata, so this counterargument may not apply.
C-RAW appears to make use of a lossy compression algorithm. Nonetheless, Bryan Carnathan investigated its high quality, and the lossy compression doesn’t appear to be a problem. The variations between RAW and C-RAW photographs appear to be principally within the random noise. The dynamic vary shouldn’t be damage like it’s with JPEG.
As a result of there doesn’t appear to be a RAW -> C-RAW converter one might run on a pc, deciding on C-RAW (plus JPEG too if not doing buffer-limited excessive velocity taking pictures) on the digital camera appears to be essentially the most good choice.
So, my query is: is there any legitimate purpose to not select the C-RAW choice on latest Canon cameras?