_,,,^..^,,,_ said:
To test the quality of a comb filter with PAL signal, it will be useful to find a Snell & Wilcox zone plate with 720x576 pixel, 25fps, lossless... does it exist?
Yes, the Digital Video Essentials DVD has a PAL version.
I can send you an m2v for just the S&W Zone Plate(s), if you'd like.