[mst]

I used to have an EF body cap with a pinhole in it.

It is fun to try, but don't have too high hopes concerning the results. Yes, there is lot's of DOF. But there is not:

- a viewfinder image
- exposure metering (it's try & error)
- anything you could call resolution

The latter point is why there will definitely not be any tests here. The results would be below where our charts start.

Oh, one more thing: if you thought, you had clean sensors in your cameras, a pinhole lens will tell you otherwise