On 3/2/14 3:13 pm, Bruce Albert wrote:
> Ditto. Absolute zero interest in dng and adobe.

Your choice, ofc.
But it sounds a tad like animosity based on ignorance. ;)

In essence it seem So you rather support your camera manufacturer's
obscure/proprietary RAW format that is likely not even open?
See https://en.wikipedia.org/wiki/Raw_image_format#Drawbacks

> I could use dcraw to convert to tiff (as I do with Fuji RAF) if it comes to 
> it.
> But it does appear that it is fixed in git.

Who developed TIFF? Aldous. Which is now Adobe. Ooops. :D

DNG uses TIFF/EP. Or rather: it is an extension of TIFF that offers the
ability to store sensor data.

Using plain TIFF will not preserve the original sensor data.
I.e. you'll loose you the ability to de-Bayer with improved technology
at a later stage because TIFF has no official support for a subformat
that stores raw Bayer data.

That's precisely one of the reasons Adobe did extend TIFF and gave it a
new fancy name: DNG.

On that note: not only TIFF itself, but also most interesting TIFF
extensions have been developed by commercial entities or by people who
had backing from a commercial entity (see
http://fileformats.archiveteam.org/wiki/TIFF).

Furthermore, there is, unfortunately, no open, non-commercially
developed image file format to store photographic data with acceptable
accuracy & metadata support, for the target audience of DT, that ever
succeeded. *Open* format options are:

- DNG (Adobe)
- TIFF (Aldous/Adobe)
- OpenEXR (Industrial Light & Magic)
- Cineon (Kodak)
- FITS (NASA, more or less)

Of all these, only DNG and FITS support for storing undemosaiced data.
But the target application for FITSs are astrophotography. I.e. unlike
DNG, it is quite specialized.

So I totally don't get why people are so negative towards DNG.

Just because the entity who developed this TIFF extension happens to be
Adobe. DNG is still completely open, Adobe has even offered to put the
further development and governing of this standard under an independent
committee at any time.

Anyone can implement a DNG reader or writer w/o having to pay a penny to
them.

.mm

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