Originally posted by jacamar Thanks Swip - I notice that for High ISO Noise Reduction the default setting on the camera is "Auto" - not sure how much difference that would have made. It's a voyage of discovery!
Edit: I found this video by Kobie M-C where he gives the opinion that the auto noise reduction is too aggressive and he suggests some custom settings:
https://youtu.be/ArrAxJDF6Rs?t=910
Thought I would give these a try.
FYI, on all my bodies (K-1 and K-3 ii), I removed the level of NR settings on all iso values below 800
here's some of my notes about that
ISO 100-800 = OFF
1600-6400 = LOW (1 bar)
12800-51200 = MED (2 bars)
⁃ Slow Shutter Speed Noise Reduction: Off (especially if you are doing timelapses at night, it will accelerate the processing when off)
- Auto iso parameters : SLOW (so the change in ISO increases as little as possible i.e. camera raises ISO very conservatively).
Since the K-3 mk3 has a better ISO capability, you might want to try expanding this to higher ISO values
I think there are a couple threads about this, this was one of them
K-3 Suggested Camera Settings - PentaxForums.com
HTH