no, not that i know of, at least there wasnt a button for it by the LCD...if it was deep in the menu i never saw it
::: connor
Hopefully you still have the 20D in order to do a side by side test of the two cameras using the same lens while set on a tripod, with all settings set to the default values ("Clear Settings" is in the menus which aren't all that deep
).
If not, restore the 40D to its default settings (Clear Settings) or set it to the same settings that the 20D had. Use the same lens that gave the good results with the 20D with a tripod, and set the self-timer with mirror lockup.
Several have suggested that the head of the bolt is too small for the focus point size - they are correct - the camera looks for contrast.
It might be best to also take some shots by manually focusing on the target; this would help to pinpoint where the problem is.
PS EDIT:
Sorry, I posted this without reading all the subseqent posts to the one I answered. I think the camera should be sent back to be calibrated.


