![]() Regarding warnings about the potential downside of converting camera raw to DNG, unfortunately that's the nature of a relatively new industry and medium. As you have described it, the camera raw file no longer exists. If that's the rationale, it's unlikely that "converting back" from DNG to camera raw would meet their standards, even if it were possible. It appears they want incontrovertible evidence of the camera raw file as it was captured in the camera. Īfter reading the rules for that competition it appears that they are concerned about avoiding ethical problems, including a repeat of the type of controversy that resulted in the 2009 winner's photograph being disqualified. But I'm still upset that everybody advises one to convert raw files to DNG without warning you about possible consequences. Anyhow I'm still awaiting a response from somebody I know - who is not part of this forum- who is going to give me an informed answer whether DNG files can be changed back to CR2 and when I get this I will all let you know. Anyhow, I don't believe that they have chosen to shortlist me because of my technical excellence or great equipment, more because of originality. They would see the changes I had made when look at the TIFF files that they have also requested. ![]() The thing is that you are allowed to apply some changes as to exposure and white balance, for example. I also had to be very quick and didn't have time to change too many settings from the shot that I had taken before. They were taken on my first digital DSLR camera, which I only had for four months and I was relatively inexperienced in shooting in raw. One of them is underexposed - I do not care to hide it- and the other is ok, but would have been better if I had taken it with ISO 200 setting and a faster shutter speed. I believe that if they would just care to take a look at the original two files- in this case DNG- that they shortlisted, they would be able to see that I hadn't made any changes to them. They probably won't, but then you won't be caught "cheating" either. I'd confess to them what you've done (converted to DNG) and see if they will accept your entry. If you don't have them, then you're out of luck and recreating something that looks like a RAW file and not telling them is unethical. The rules clearly state that you must have the original RAW files to be eligible for an award. The big downside of doing this is, of course, if they detect that the RAW files you send are not authentic, original, Canon RAW files as shot in the camera, your reputation will be blown and you'll probably be barred from entering any future contests. I don't know enough about the structure of DNG files to know if all the required data is still there. ![]() Since it's just digital data, obviously it's theoretically possible to write data to a file using the same format and coding as Canon do as long as you actually have the original data in some form. There's no easy way to recreate the original RAW file as far as I know. They've had enough problems with "photoshopped" entries that I can see why they do this. They want RAW if the camera is capable of shooting RAW.
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