small viewfinder for dslr hotshoe

For Microsoft 3D Builder. I have several filters for my DSLR that when I use them it is almost impossible to aim the camera. These filters include the Infrared Filter, the Solar Filter, etc. This small unit sits on the hotshoe and helps in aiming the camera. I made this based on two other things on this site - Viewfinder_75v4 and a GoPro hotshoe mount.