Mark Schubin wrote: >The common definition of the Kell factor is the >reduction in vertical resolution from the number of scanning lines > Sorry. I left out the word "active." That should be "the reduction in vertical resolution from the number of active scanning lines." TTFN, Mark ---------------------------------------------------------------------- You can UNSUBSCRIBE from the OpenDTV list in two ways: - Using the UNSUBSCRIBE command in your user configuration settings at FreeLists.org - By sending a message to: opendtv-request@xxxxxxxxxxxxx with the word unsubscribe in the subject line.