Re: EOS Why doesn't my 1.4 50mm or my 2.8 70-200L....

[Karen Nakamura]

I think what is going on is that the focusing screen is smaller than the 
actual 35mm film. The image gets projected on a smaller focusing screen, 
then flipped and enlarged in the pentaprism. Because the focusing screen is 
smaller, the circle of confusion is much smaller, which means that the DOF 
appears to be less.

Of course, I could just be blowing hot air.

KN

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