Originally posted by onscreen Thanks for help, Class A! I've tried Raw Therapee on those raws and VNG-4 algorithm seems to be the best. Still, artifacts remain but became less noticeable.
I wonder whether my camera is faulty or it's just a common problem among Pentax DSLRs that capture such materials as aforementioned fine-detailed cloth.
See
here for the theory.
Bottomline, no dslr manufacturer dares to implement an antialiasing filter strong enough to prevent this.
You would need a 40Mpixel sensor and a strong antialiasing filter to get no moire for the same 10Mpixel resolution as the K-m has.
Would you have bought the K-m, if the effective resolution was 2.5 Mpixel, and garanteed no moire ?
George