A K20D professional user reported that his K20D produced annoying obvious vertical (stripping) pattern noise (VPN) when used under cold weather (that was not really extremely cold):-http://forums.dpreview.com/forums/read.asp?forum=1036&message=30027850As we can see from his artworks, which should have been great and nice ones, if these were not tampered by that superimposed VPN, which is very
