On 26 Nov 2005 at 20:29, Igor Roshchin wrote: > > Hi All, > > I think I've seen somebody discussing this issue here on the list, > but couldn't find it now. > I've noticed this artefact: when shooting at ISO 3200 in the room > with tungsten light, there are vertical color lines appearing > in the image. > In some cases those lines are more pronounced at certain temperature > (color balance) settings. > > What is the reason for this behavoir, and how can one deal with it?
I've only ever experienced lines across the length of the frame, not along the short side, what was the orientation of the frame as you might simply be seeing flare from a light source outside the frame? If what you are seeing is single coloured lines across the length of the frame there is no conclusion as to the source of such errors and no solution. There is speculation that it's temperature or power supply oriented or potentially optical excitation of row electronics. Manual cloning in an image editor is the only real way to eliminate the problem. Rob Studdert HURSTVILLE AUSTRALIA Tel +61-2-9554-4110 UTC(GMT) +10 Hours [EMAIL PROTECTED] http://members.ozemail.com.au/~distudio/publications/ Pentax user since 1986, PDMLer since 1998
