Raw To Dng

i think DNG files (pronounced as DUNG files...) anyway, are used as a universal raw. if your camera isn't compatible with the program the dng file will allow it to be used. if lightroom accepts it, just leave it alone.

i don't know what iphoto is. and it depends what your saving it as. jpg compresses so it will be smaller. if there is a noise reducer, it can flatten that making it smaller. raw is always larger because it has more bits of data than other files, so that makes it bigger as well.

---Mike Savad
MikeSavad.com

Did you mean export?

I don't understand this line "Is it a bad idea to import RAW to DNG in Lightroom ?? "

You import raw, dng, jpeg etc. than develop a photograph and you export same of different type of file.

As Mike has mentioned, noise reduction and cropping makes files smaller but almost everything else makes it bigger.

Can you clear things up please:

Do you import RAW file and then export it to JPEG or DNG or something else?

I am not sure if it is the same case with DNG but TIFF files lose some camera information along with the conversion.


I have been doing some research lately about converting and moving files between different softwares without loosing any quality.

If you use Lightroom you should do everything what you need there and than export to TIFF (lossless) and continue with this file in different program.

If I remember correctly exported DNG files don't save changes you have made in RAW file (or they do in separate file)

Anyways, this is one of the places I have learnt a lot from when I wanted to do what Mike does best :)


I think you should find some of your answers here (makes sure you read people's comments as well)
http://farbspiel-photo.com/learn/hdr-cookbook/creating-32-bit-hdrs

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www.tgchan.pl
www.tgchan.artistwebsites.com

Tgchan. You would convert to DNG when you import. DNG is an open source Raw format created by Adobe.. The idea is is to have one universal format not dependent on any one company. So you have the option of importing and converting to DNG or not. Its in the import menu. "copy as DNG" or set in preferences. You could also export as a DNG.

According to Scott Kelby DNG files are 20% smaller then other Raw files.
DNG files can be exported with the edit info embedded. For camera Raw files the edit info has to be exported separately.

@ Bradford Martin

Thank you very much for explaining this. I totally forgot about it (working with Lightroom only). I remember now that, when I was trying to import RAW file to photoshop, it was converted to DNG first.


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www.tgchan.artistwebsites.com