Originally posted by Svenneke Hello Steve, thank you very much for your answer.
AWB was not possible because the LED's emmit a very warm color, so warm that even with AWB the colors were much too warm and far for the neutral white that manual white balance privided me with.
In the mean time I did the test to open the (corrupt looking?) yellow files in my software of choice, RawTherapee.
The miniatures that are visible straight from the camera show the same yellow colors and indeed again only with the pixel shifted versions.
However, when I open these files in the developers panel in RawTherapee they look perfect and are exactly like the non pixel shifted versions, leaning perfect white balance and absolutely not a hint of tha yellow color it shows in-camera.
I opened all four individual images of the ps version in RawTherapee and they all are perfectly exposed and colored.
So it seems that my camera is rendering or interpreting something wrong when combining these four, but the RAW data in the DNG files are fine and perfectly usable.
That is good to know because now I know that these faulty yellow looking images do contain the right data in the RAW file and are perfectly usable, only not straight out of the camera.
Perhaps PENTAX should look into that if they can reproduce these circumstances?
Thank you for your time and effort to help me.
Greetings,
Sven
Dear all,
I noticed another no so normal behaviour. When I opened the file browser in RawTherapee, I saw the original pixel shifted files as yellow miniatures, just like on the display of my K1. As soon as I opened and developed them, they seemed normal and afterwards after exporting a jpg, without making any changes on the RAW data, the miniatures looked normal. See my 2 attached print screens begore and after.
Maybe someone has any idea what can cause this behaviour and solve this problem.
Since these yellow colors are only visible in the camera and the minitaures, I am inclined to think it is a rendering problem. The RAW files are perfectly normal.
Have a good night.
Greetings
Sven
---------- Post added 12-05-18 at 10:15 AM ----------
Sorry, the pictures are reversed in order, first the yellow without opening, afterwards the neutral version after saving without any change.
IPad's are not that handy for posting things...
;-)
---------- Post added 12-05-18 at 10:59 AM ----------
Hi everybody,
Determined to solve the reason why this happens I found out that it solely depends on which color the IKEA LED's are set.
The IKEA TRÅDFRI dimmable led's can be switched between warm white, neutral and cool white.
The strong yellow color as seen in the images above, are only visible when the LED TRÅDFRI is set to warm white, even if I have made a manual white balance beforehand. As soon as I change it to neutral or cool white, the problem went completely away. Color temperature is alway set with a new corresponding manual white balance. The results with the last two settings are perfect and there is no color shift whatoever, the same long shutter speeds are used to prevent the influence of the 50Hz flicker.
For some strange reason, the in-camera rendering goes wrong when set to a manual measurement with the (very) warm white IKEA TRÅDFRI LED's. I could not reproduce this with any other lights available.
Thank you all for thinking with me and suppose ideas.
Have a good night.
Greetings from Belgium