Ideal for snapshots, restrictions on the Dust

The lid is functioning properly when you first installed it.
I've found the following proposal to:
"The camera with the display put on the table, including a little soft, so that the display will not be scratched, the aperture ring to position" bring 8 ", put both thumbs on the ring and something strong to the left (you can watch the Lens from the front). "
This is in my view the best method.

The only drawback (hence only 4 stars) - by 3 (relatively large) gaps, dust and even small grains of sand penetration and scratch the lens. Since I enjoy spending snapshots but outweighs the advantage for me.