Originally posted by mervis I know how DNG works, but I'm not sure if it's as easy as you say, since the OP is having trouble with the Pentax version of DNG that's coming straight out of the K-01. The Adobe converter offers support for the K-5 and K-r but not the K-01 as of yet, so if the OP needs to convert from the Pentax version to a more universal version that Capture One can read, Adobe can't help with that for now.
DNG is almost compatible with TIFF/EP, you can even make it compatible if you want actually but you need to trim down the functions but if you do you can replace .DNG with .TIFF and it will work.
So yes it's that simple as i wrote it down.
Here is a technical summery.
Quote: A DNG file always contains data for one main image, plus metadata, and optionally contains at least one JPEG preview. It normally has the extension "dng" or "DNG".
DNG conforms to TIFF/EP and is structured according to TIFF. DNG supports various formats of metadata, (including Exif metadata, XMP metadata, IPTC metadata), and specifies a set of mandated metadata.
DNG is both a raw image format and a format that supports "non-raw", or partly processed, images. The latter (non-raw) format is known as "Linear DNG". Linear DNG is still scene-referred and can still benefit from many of the operations typically performed by a raw converter, such as white balance, the application of a camera color profile, HDR compositing, etc. All images that can be supported as raw images can also be supported as Linear DNG. Images from the Foveon X3 sensor or similar, hence especially Sigma cameras, can only be supported as Linear DNG.
DNG can contain raw image data from sensors with various configurations of color filter array (CFA). These include: conventional Bayer filters, using 3 colors and rectangular pixels; 4 color CFAs, for example the RGBE filter used in the Sony DSC-F828; rectangular (non-square) pixels, for example as used in the Nikon D1X; and offset sensors (for example with octagonal pixels) such as Super CCD sensors of various types, as used in various Fujifilm cameras. (Or combinations of these if necessary). DNG specifies metadata describing these individual parameters; this is one significant extension to TIFF/EP.
The Adobe DNG converter can help if it converts the DNG 1.1 to DNG 1.2.
But DNG 1.2 standard is already almost 4 years old now so i actually assume that the K-01 actually uses DNG 1.2 though...
And don't worry about support, Adobe has his DNG support in working order off course so it should take the K-01 files without a problem.
Adobe - Adobe Camera Raw and DNG Converter : For Windows : Adobe DNG Converter 6.6
ps. found this site that is a bit more technical and goes deeper.
http://www.barrypearson.co.uk/articles/dng/specification.htm#standards