Index: trunk/MagicSoft/Mars/mcalib/MCalibrationQEPix.cc
===================================================================
--- trunk/MagicSoft/Mars/mcalib/MCalibrationQEPix.cc	(revision 3689)
+++ trunk/MagicSoft/Mars/mcalib/MCalibrationQEPix.cc	(revision 3690)
@@ -52,21 +52,23 @@
 //     camera) and divides this number by gkDefaultQEGreen, gkDefaultQEBlue, 
 //     gkDefaultQEUV or gkDefaultQECT1, depending on the used pulser LED colour, 
-//     and further by MCalibrationQECam::gkPlexiglassQE. The obtained number gives 
-//     the NUMBER OF PHOTONS incident on a pixel with area index 0 (INNER pixel) 
-//     OUTSIDE THE PLEXIGLASS of the camera, obtained with the F-Factor method.
+//     and further by MCalibrationQECam::gkPlexiglassQE. The obtained number is then 
+//     divided further by MGeomCam::GetPixRatio(pixel idx) (1. for inner pixels) and 
+//     gives the NUMBER OF PHOTONS incident on every pixel light guide OUTSIDE THE PLEXIGLASS 
+//     of the camera, obtained with the F-Factor method. (In the case of the MAGIC camera, 
+//     this number is thus BY CONSTRUCTION four times bigger for the outer pixels than for 
+//     the inner ones.)
 //
 // 6)  MCalibrationChargeCalc calculates the mean photon flux per mm^2 in the camera 
-//     from the MCalibrationChargeBlindPix, multiplies it with the area of 
-//     one pixel with area index 0 (Inner pixel) and divides it by the quantum 
-//     efficiency of the plexi-glass (MCalibrationQECam::gkPlexiglassQE). The obtained 
-//     number gives the NUMBER OF PHOTONS incident on a pixel with area index 0 
-//     (INNER pixel) OUTSIDE THE PLEXIGLASS of the camera, obtained with the 
-//     Blind Pixel method. 
+//     from the MCalibrationChargeBlindPix and multiplies it with the light guides area 
+//     of each pixel (MGeomPix::GetA()) and divides it by the quantum efficiency of the 
+//     plexi-glass (MCalibrationQECam::gkPlexiglassQE). The obtained number gives the 
+//     NUMBER OF PHOTONS incident on every pixel light guide OUTSIDE THE PLEXIGLASS of the camera, 
+//     obtained with the Blind Pixel method. 
 //
 // 7)  MCalibrationChargeCalc calculates the mean photon flux per mm^2 in the camera 
-//     from the MCalibrationChargePINDiode and multiplies it with the area of 
-//     one pixel with area index 0 (Inner pixel). The obtained number gives the 
-//     NUMBER OF PHOTONS incident on a pixel with area index 0 (INNER pixel) 
-//     OUTSIDE THE PLEXIGLASS of the camera, obtained with the PIN Diode method. 
+//     from the MCalibrationChargePINDiode and multiplies it with the light guides area 
+//     of each pixel (MGeomPix::GetA()).  The obtained number gives the NUMBER OF PHOTONS 
+//     incident on every pixels light guid OUTSIDE THE PLEXIGLASS of the camera, 
+//     obtained with the PIN Diode method. 
 //
 // 8)  Each of the three photons numbers is divided by the mean sum of FADC counts