>Thanks for the info. I will be using a test page from our HP Laser Jet
>printer instead of a newspaper. BTW, what's the 45 degree tilt for? Also,
>did you say negatives or should I use transparencies for this test? Would
>there be any difference?

Any film is fine. Unless you shoot at an angle, you won't know where you
focused (on, behind, or in front of the intended place).

>>Look with a 10x magnifier at the negatives to see if the average is
>>where it should be, or is behind or in front of the letter.
>I didn't understand what you meant with this. BTW2, Nikon or Canon, I think
>there should be no difference, right?
>Thanks again,
>Jun Viray
>Hong Kong

When shooting a specific spot on a tilted plane, if you miss the spot, it
will show. You will miss some due to reasons other than camera accuracy,
but the range of misses should be on both sides of correct in a large
sample of tries.
David