Question on scanning

[Henk]

Hi,

I've read this very interesting article on scanning, somewhere referenced earlier int this forum : http://www.filmlives.net/community/viewtopic.php?t=594&sid=fc3bba0ae1a0cd3fa6e9a90ff60ed4c8

I have one question about this article : I suppose that what is ment by a blank, clear frame is a frame exposed with a lenshood on the lens (black) and then normally developed ? Thanx !