This is an add-on lens shade that increases the shading with the APS sensored cameras
such as the Sony A100 and KM 5 and 7D

Print out on heavy paper or a transparency sheet and cut out and spray paint the backside flat black.

Tape the ends to themselves along the bottom for a snug fit.

Adjust the shade back and forth so that the dotted lines are just hidden by the fixed lens
shade on the lens.