Hi Bill. The file sample.tif was generated in ImageJ and I also get the error for 8bit files. Is your other tiff file a multipage tiff? Or a single image file? Thanks -- View this message in context: http://vtk.1045678.n5.nabble.com/Bug-found-in-vtkTIFFReader-tp5729336p5729359.html Sent from the VTK - Users mailing list archive at Nabble.com.