after shooting this image i have noticed a lot of hot pixels.
Long exposure (150s), but i don’t remember so many hot pixels in the past… i have tried the hot pixel filter, with ART 1.20.2, but nothing changes after enabling the filter…
I saw today that you started implementing the hot/dead pixel filter for xtrans. I tried it, and it seems to work fine. I just have to lower the threshold frequently to get more of the hot pixels filtered out.
Regarding dead pixels, I’m not too sure. Either my camera has only hot pixels and not dead pixels, or I don’t know how this filter works, but in my case it didn’t seem to filter any pixel.
Let me know if you need some sample raw files.
The X-T20 has the same pixel mapping function as other cameras of the X line. From the user manual, page 130:
Press MENU/OK in the shooting display and select the “IQ” IMAGE QUALITY SETTING tab.
Highlight PIXEL MAPPING and press MENU/OK to perform pixel mapping. Processing may take a few seconds.
Results are not guaranteed.
Be sure the battery is fully charged before beginning pixel mapping.
Pixel mapping is not available when the camera temperature is elevated.
I don’t see too many problems. For the first 2 pictures, after activating the hot pixels filter and setting the threshold to 50, I only see 1 problematic spot left (bottom left part of the image). I guess most of the time you can simply use the spot healing tool for this single problematic area.
In the last image I found no issue and the threshold at 100 seemed to work fine.