-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Valencic Miha Sent: Monday, December 11, 2006 10:16 AM To: [email protected] Subject: EOS RAW files and their future
Guys, I have some different RAW format files (D30, 10D, 300D and 30D). When I want the best quality or when the lighting is tricky, I tend to use RAW for capturing images. Lately, I started to wonder how will I open my old (say D30) raw files a couple of years from now. The format is not the same as the new RAW files, so I can not count that this will be supported forever. For instance, when the new OS comes out (like MS Vista), I have no guarantee that Canon will release a library that will read the "old" formats. So, I am asking you guys, what do you do? I for one, have not converted the RAW files to open-format "digital negatives". I have, however, created jpeg copies. The conversion process itself is child simple (since I use DAM software I can batch convert them anytime I want). The question is: is there a format, equivalent to RAW, which stores all the details of the RAW (so you can apply lossless whitebalance settings afterwards, for instance)? In other words, is there an "open" format available, that will store as much information as the canon CRW/CR2 file stores? Or will I loose something? (for instance, in 8bit jpeg files, one looses 4 bits per channel (dynamic range), after-the-fact white balacing w/o loss of quality and probably then some) What will I loose? Is Adobe DNG the way to go? 16bit TIFF (here you lose something if you change w/b)? What do you guys do? Thanks for your thoughts.... Miha ------------------------------------------- The TIFF format is lossless, though the huge change in file size may become an issue down the line. Converting from RAW to TIFF can cause a 6X or higher jump in file size, especially if you are using 16 bit. 10D RAW files start out at 6MB and jump to 36MB on a straight RAW to 16-bit TIFF conversion. I haven't even tried to save files as a TIFF for the 5D yet...I don't have the hard drive space for it... RH * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
