Originally posted by robbiec The NR settings in the K-5, do these also apply to RAW? i.e. Can I turn NR off through the whole ISO spectrum and use an external NR software instead or tone down the amount of NR performed at higher ISO's?
A raw file is not viewable, it is uncorrelated data. When you view a raw file, you're viewing the software's interpretation of the data. The data is displayed using the software's own rules (algorithms), so various softwares will show the file looking a little different (sometimes a lot different). Once you convert from raw to a jpeg or tiff file, all softwares will show the file in exactly the same way, using standard algorithms that are universally understood.
If you use a Pentax camera and use the Pentax supplied software to display the raw file, you are viewing an exact interpretation of the camera settings, including noise reduction. If you convert the file directly to jpeg, the camera settings for saturation, contrast etc will be used, and so will the noise reduction setting. If you don't want noise reduction applied, you must either disable it in the camera, or disable it before conversion using the Pentax software.
If you don't use Pentax software for viewing raw data and converting jpegs, then it is not so clear what the result will be (i.e. how the camera settings will be interpreted), because other softwares translate Pentax raw data using their own algorithms, including NR. You may prefer the results or not. I use Pentax DCU4 to convert to jpeg, then I use other softwares to process the jpeg.
Last edited by audiobomber; 11-21-2010 at 09:52 AM.