A couple of people have commented about how their LCD Viewfinders can lose adhesion from the metal frame to the LCD glass. Just wanted to remind everyone about an old video I posted a while back that might be a good solution by permanently (epoxy) attaching the LCD Viewfinder to an LCD Hood Shade. Originally this video was for the Hoodman since I thought the LCDVF had a decent solution, but appears even the LCDVF sticky frame can cause problems. There's even a shade available now for the Canon 550D / T2i so that you can quickly mount and dismount the LCD Viewfinders. You can find the LCD Shades for the Canon 550D / T2i for as low as $12.50 + Free Shipping here.