RAW image files are proprieties of the cameras manufacturer their file extensions are unique to its own and do not exchange well over other programs they consist of ".RAF" for Fuji ".ORF" for Olympus, ".NEF" for Nikon and ".CRW" for Canon, just to name a few. Adobe has also developed a RAW image file extension, ".DNG" meaning digital negative in 2004, Abodes DNG was created with the intention of unifying the individual RAW camera file formats.
Your RAW image is at its most pure, but there is no guarantee that your cameras RAW file will be recognized by available software applications sometime in the future. You may have the most up to date software to read your Olympus RAW images today, but long-term archival of your RAW photographs do present some concerns. Perhaps 25 years later when you want to access your archived photographs, of your family are looking for that special photo of "Aunty Jan" as a kid, or another photo that might have some historical significance that your photos many not be accessible. This was a great concern to Photographers at the beginning of the Digital photography explosion, and even the reason why many today still shoot with film despite the advancements in digital photograph quality.
DNG image file format is the answer to this concern.
DNG files also have the added security advantage of saving all of the photo information supplied with the RAW files, i.e. keywords, copyright notices and descriptions. Basically you can have your RAW file completely intact after converting to DNG.
DNG files have the ability to store full sized files or JPEG previews making it possible to preview your photos in your selected picture viewer.
Using RoboImport (, some picture viewers are unable to recognize the variations. TIFF although is still supported by many printers as standard for its ability to handle device-specific color spaces such as CMYK.
GIF- Graphic interchange format is limited to a small 8-bit color palette. Gif files are very small making them ideal for internet webpages and animations.
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, some picture viewers are unable to recognize the variations. TIFF although is still supported by many printers as standard for its ability to handle device-specific color spaces such as CMYK.
