drknsss wrote:So wouldn't this mean that larger file sizes like from the Red means they are trying to extract the best DR out of their sensor as you commented above?
RED have larger files ? I'm not sure exactly what you're meaning here. Actually ARRI RAW is larger, even though they have less resolution simply because they are uncompressed.
DR is best represented by bit depth.
Resolution is best affected by less compression.
It's hard to compare RAW codecs. RED typically use Wavelet comrepssion whereas everyone else is DCT, but the latest Komodo is a DCT based REDCODE.
Bit Depth is the most important. Marketing wise some companies say 16 bit !! Some say 12. Usually it's 12 bit log or 16 bit linear. These are considered to be THE SAME.
REDCODE is probably 16 bin linear wavelet based (they usually are very secretive about this),
ARRIRAW is 12 bit LOG uncompressed (larger files)
Sony RAW (higher end cameras) is 16 bit linear 3:1 compression (larger files)
Blackmagic DNG is 12 bit LOG, mild compression (larger files)
Blackmagic BRAW is 12 bit log, much higher compression (smaller files)
All of those codecs are capable of capturing high dynamic range images. Some of them look worse than others when compressed. Some of the very highly compressed smaller files on REDCODE can look very mushy in low light. BRAW in it's most compressed can also loose a lot of very fine detail which is RESOLUTION not DR.
DR = Bit Depth
Compression = Resolution
JB