Pass through RT with only DNG to TIF16 conversion

Software RawTherapee
1

Can I make a pass using RT to convert a raw Pentax K1 DNG file to a raw TIF16 file? I wish no manipulation of the pixel information and have no worry of loss of the EXIF info? Someone have a pp3 to do this?

Thanks,
RONC

2

Hi Ronald,

maybe this?

1920×1080 630 KB

Edit: I missed this: to a raw TIF16 file. So my suggestion is wrong.

3

Ingo,

Thanks. I’ll have a go at it. Looks pretty easy if I remember to follow directions.

Any news on getting a MAC?

RONC

4

No, use dcraw.

5

Why dcraw? RT and dcraw should give same output. Correct?
RONC

6

No, RT uses dcraw mainly to decode the raw files. After that step the processing is different.

7

@rechmbrs Use document mode -D. Here is a tutorial on dcraw that I found helpful in the past: GUILLERMO LUIJK >> TUTORIALS >> DCRAW TUTORIAL

8

Because you wanted “a raw TIF16 file” with “no manipulation of the pixel information”.

9

Thanks,
RONC

10

@Morgan_Hardwood

I was under the impression that is just what you get when you select Color Management > Save reference image.

11

“Save reference image for profiling” avoids most changes, but the image does get demosaiced, and RONC wanted a non-demosaiced TIFF.

RawTherapee can show you the image without demosaicing if you set the demosaicing method to “None”, but the image still gets converted to a working profile, white-balanced, etc.

12

Morgan,
Thanks for clearing this up. I have dcraw now and will test it today.

RONC