Sensor Cleaning - Which part of pic relates to sensor

Ok the top right of a picture viewed on my monitor is exactly which part of the sensor (when looking at the sensor with camera right side up)??

Top Left

No, it will be the lower right AS YOU ARE VIEWING THE SENSOR.

Looking through viewfinder the sensor would be getting an image exactly as you see it. So turn the camera around and the spot would be top left. Nothing is reversed or flipped around until it hits the mirror and goes up to the pentaprism. The mirror moves when you take the pick so nothing is flipped. Unless someone can explain things differently.

If you could see the sensor from the rear of the camera then the image would be upside down & reversed Left to Right. All lenses do this. So your spot on the top right of the picture would be on the lower left if you could view from the camera rear. Since you can not view from the camera rear & must look from the front this would put the spot on the lower right. In the viewfinder, the mirror brings the image upright & the pentaprism flips it left to right for a properly oriented view thru the viewfinder. Hope this isn't too confusing.

I think chigger got it right.

OK

I agree with chigger. Simple test to prove it - remove the lens, point the camera at a bright light source and CAREFULLY move your finger near to the opening in the body. Watch where the finger appears then move your finger round the perimeter. It takes some getting used to as your finger moves in the opposite direction to that which you see.