Um, I understand metering modes just fine, and cookie-cutter condescension like the above doesn't change that.
I wasn't trying to be condescending, I was trying to give you good advice based on my impression that you did not understand how the metering modes in your camera worked.
To recap, in Post 35 I asked:
To which you responded in Post 40:
My reasonable conclusion to your response could have been:
(a) you did not understand how to meter exposures using the spot meter in your camera, or
(b) you did understand how to use the the spot meter to set your exposure, but you chose to provide a flippant response.
I chose (a). Was I wrong?
You still have not responded to my original question - what did you meter in spot mode and how did you compensate if the object wasn't close to 18% gray? I now believe that you simply set the metering mode to spot and pressed the shutter (just like you said) without giving any thought to what you were actually metering or if any compensation was necessary. Given these facts, I am not surprised that your exposure did not work out as expected.