My Custom Function settings on the Canon 50D

Here's how I have configured my 50D Custom Functions.

• C.Fn I-5: 1 exposure bracketing sequence: -,0,+
  This sequence is easier when taking multiple photos for HDR processing on the computer.
  Note 090920: I am experimenting now with the default sequence of 0, -,+.
  The reason is that the - and the + photo can be an alternative over using all three pictures. Shooting the - and the + picture in order minimises the chance of ghosting.
  
• C.Fn I-6: 1 Exposure Safety Shift: Enable
  With this enabled, the camera will change the shutter speed (in Tv mode) or aperture (in Av mode) in order to obtain a correct exposure.
  
• C.Fn II-1:1 Long Exposure noise reduction: Auto
• C.Fn III-2:2 Only external flash emits
  I don't like the light flashes which the internal flash emits to help the auto focus system.
  
• C.Fn IV-1:2 Metering start/Meter+AF Start
• C.Fn IV-2:1 AF-ON/AE lock button switch
  The functions of the AF-ON and * buttons are switched. * starts the auto focus system.
  
• C.Fn IV-3:1 SET button set to Image Quality
• C.Fn IV-5:1 Ef-D focusing screen
  I use the Ef-D focusing screen. This focusing screen has horizontal and vertical lines wich help me to get straight horizons and straight vertical buildings on the photo.
  
• C.Fn IV-7:3 Assign FUNC. button Exposure comp/AEB setting
  

All other C.Fn settings are set to their factory defaults