diff -wu clean/vtkTIFFReader.cxx patched/vtkTIFFReader.cxx
--- clean/vtkTIFFReader.cxx	2005-04-14 14:31:38.833637904 +0300
+++ patched/vtkTIFFReader.cxx	2005-04-14 14:34:13.555116664 +0300
@@ -175,6 +175,7 @@
   this->InitializeColors();
   this->InternalImage = new vtkTIFFReaderInternal;
   this->InternalExtents = 0;
+  this->RawMode = 0;
 }
 
 vtkTIFFReader::~vtkTIFFReader()
@@ -215,6 +216,7 @@
 
   switch ( this->GetFormat() )
     {
+    case vtkTIFFReader::RAW:
     case vtkTIFFReader::GRAYSCALE:
     case vtkTIFFReader::PALETTE_GRAYSCALE:
       this->SetNumberOfScalarComponents( 1 );
@@ -432,7 +434,8 @@
   this->ColorGreen  = 0;
   this->ColorBlue   = 0;
   this->TotalColors = -1;  
-  this->ImageFormat = vtkTIFFReader::NOFORMAT;
+  if(RawMode) { this->ImageFormat = vtkTIFFReader::RAW; }
+  else this->ImageFormat = vtkTIFFReader::NOFORMAT;
 }
 
 void vtkTIFFReader::ReadImageInternal( void* vtkNotUsed(in), void* outPtr, 
@@ -525,6 +528,7 @@
 
   switch ( format )
     {
+    case vtkTIFFReader::RAW:
     case vtkTIFFReader::GRAYSCALE:
     case vtkTIFFReader::RGB: 
     case vtkTIFFReader::PALETTE_RGB:
@@ -593,6 +597,10 @@
   unsigned short red, green, blue, alpha;
   switch ( this->GetFormat() )
     {
+    case vtkTIFFReader::RAW:
+	*image = *source;
+	increment = 1;
+	break;	
     case vtkTIFFReader::GRAYSCALE:
       if ( this->GetInternalImage()->Photometrics == 
            PHOTOMETRIC_MINISBLACK )
diff -wu clean/vtkTIFFReader.h patched/vtkTIFFReader.h
--- clean/vtkTIFFReader.h	2005-04-14 14:31:38.833637904 +0300
+++ patched/vtkTIFFReader.h	2005-04-14 14:34:57.999360112 +0300
@@ -88,8 +88,11 @@
   // Auxilary methods used by the reader internally.
   void InitializeColors();
 
+  vtkSetMacro(RawMode,int);
+  vtkGetMacro(RawMode,int);
+  vtkBooleanMacro(RawMode,int);         
 //BTX
-  enum { NOFORMAT, RGB, GRAYSCALE, PALETTE_RGB, PALETTE_GRAYSCALE, OTHER };
+  enum { NOFORMAT, RGB, GRAYSCALE, PALETTE_RGB, PALETTE_GRAYSCALE, OTHER, RAW };
 
   void ReadImageInternal( void *, void *outPtr,  
                           int *outExt, unsigned int size );
@@ -128,6 +131,7 @@
   unsigned int ImageFormat;
   vtkTIFFReaderInternal *InternalImage;
   int *InternalExtents;
+  int RawMode;
 };
 #endif
 
Only in patched: vtkTIFFReaderPython.cxx