The Hoodman H-40D FlipUp Cap & Hood for the Canon 40D is now available online for $35. This contraption clips into place by first slipping the original Canon 40D eyepiece up and off the camera and then sliding the H-40D FlipUp cap over the eyepiece mounting flanges to cover the entire LCD screen.
The cap is a good protection for the delicate LCD screen when in closed position and provides improved outdoor viewing when flipped up into a three-sided hood.
The H-40D can be ordered online from the Hoodman Corporation based in Torrance, California. FlipUp LCD caps are also available for other DSLR brands like Nikon, Sony, Fuji and Minolta.