nail hole camera

do i have to paint the inside of the pinhole camera black? i am going to
use a 20 foot tube and i dont know if i can get to all of it inside. i
bet i lose image if i dont. maybe i should be writing to nailhole
discussion... the f stop is going to be insane.

thanks for any help offered.
Received on Sun Jul 28 02:04:05 2002