Dauntless
Contributor
Or you could get some PVC and DIY: This gives a 16:9 perspective, not exactly a view finder but if you center the rectangle on the subject at arm's length, you should get a centered video on the subject. Also could attach some lights and other stuff too. PVC plus Tripod mount with a little shaping of the pvc "T" connector and screw. The attached images are a little distorted from the close up shot but the 16:9 rectangle has square corners and the camera is square on the tripod mount.