My test of the light leak phenomenon

I tested mine last night.
Same test as Canon Rumors
No lens
Cap on
P mode
Cover viewfinder
ISO 800

And yes my camera is effected
But I also tried changing the ISO
ISO 400 - confirmed issue
ISO 100 - no problem !

Its interesting the leak isnt enough to efffect ISO
100. But makes sense because of the lower sensitivity

I didn't check with the lens on. Originally I read
The camera operates normally with the lens on
So it may just be a non issue. But I did see a YouTube
Video showing exposure changes on a 5DIII with the lens on

But overall the camera has been great...