I normally don't like to post about techie products and accessories but I will geek out for a minute here. Hoodman makes amazing accessories for photographers and videographers, directors etc. An arm injury forced me to make some changes in the way I shoot and this company has all the right gadgetry.
The digi- lupe- u just can't live without it. I can shoot in the hottest, brightest dessert light and still see my frame to determine exposure perfectly with this little gadget. Hangs around your neck while you work and weighs nothing.
I also bought the right angle viewfinder that allows you to shoot super low without bending in a yoga position to get the shot.
hoodman site