#SAVING TOPAZ STUDIO 2 FILES PROFESSIONAL#
These images were identically processed in Canon's Digital Photo Professional using the Standard Picture Style with sharpness adjusted to "2" (on a 0-10 scale). Let's start with a 100% resolution comparison example. Note that if you can't see the differences at 100% resolution, it is unlikely that you will ever notice them. You are going to be challenged to find them. What are the image quality differences between Canon RAW and C-RAW File Formats? I spent an afternoon (OK, more than a day), hunting for differences between RAW and C-RAW, looking at highly-magnified, identically captured and processed images with and without this compression used. I really wanted to know and, what started as a simple evaluation of this feature turned into a project. My guess is that most of the Canon USA technical representatives are not yet up to speed on this new feature. I have asked Canon for advice on when the C-RAW format should or should not be used, but still await that reply. Similarly, if you can't hear a 30kHz sound, it doesn't matter if your speaker can produce it (unless perhaps your dog cares). While none of us welcome our image data being thrown out, what really matters is whether or not we can notice what was discarded. It would have been great to hear that Canon created a breakthrough compression technology (and perhaps they did), but there is another primary reason for the smaller C-RAW size.Ĭanon has advised us that the new C-RAW format uses a lossy-compression algorithm, meaning that some of the image information is discarded to save space, while RAW file compression is not lossy (or minimally, we don't know that it is). Indicating that some level of compression is already being included in normal RAW files.īut, there is obviously a big difference in the RAW and C-RAW compression algorithms. I created 6 comparisons using average scenes captured with a wide angle lens.įile sizes in these tests indicate size reductions ranging from 27% up to 54% with the average being roughly 42%, in line with the expectation Canon set.Ĭ-RAW files are about the same size as Digital Photo Professional-created 10-quality JPG files and that is impressive.Ĭanon C-RAW uses a lossy compression algorithm.Ī compressed file is smaller than a non-compressed file (as just mentioned) however, non-compressed Canon RAW files are already considerably smaller in size than an equivalent uncompressed bitmapped TIFF file (even an 8-bit file), More images fit on a memory card or hard drive and file transfers take less time.Ĭanon has indicated that we should expect 40% smaller files from C-RAW. What are the file size differences between Canon RAW and C-RAW File Formats?Ī compressed file is (usually) smaller than a non-compressed file and all welcome a smaller file size. What started out as a brief look turned into a moderately-large project and I share some of what I learned below. CR3 file format was the C-RAW (Compressed RAW) image file format that replaces the not-full-function M-RAW and S-RAW formats.Īlong with most other new camera features, I felt compelled to figure this one out. Introduced with the Canon EOS M50 was Canon's new. Should I Use Canon's C-RAW Image File Format? Just Posted: Canon RF 1200mm F8 L IS USM Lens Review.Canon USA Announces Precision Alignment Service.It's Back! 5DayDeal's Ultra Popular Complete Photography Bundle is Now Live for 2022!.Royal 6圆 Bull Elk in the Rain, Rocky Mountain National Park.Sony Rolls Out New Instant Savings Program – Save Up To $500.00.
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