I had occasion to pick up two of Canon's two other viewfinders recently. One is the speed finder, an interesting finder. The entire viewfinder image is viewable from 60mm away. A feature is that the head will swivel 180 degrees to allow for waist level viewing, and a flash hotshoe. I can think of macro applications where this will be useful. The one drawback is the added weight, versus the AE finder or the eye level finder FN. The other finder I bought is a waist level chimney finder. It has a large eyecup for blocking all side light, it also provides a 6X magnification and a diopter correction from -3 to plus +5. Both are pristine and came in their own plastic cases.