I intend to use a phantom to help measure swimming pools for replacement liners. The thinking is--if you are far enough away and zoomed in, you should be able to eliminate lens curvature and allow for a mostly flat perspective. This perspective should allow me to extract the dimensions in AutoCad by tracing the photo. tolerance would be +/- 1/4" over 20' or so. What I think I want to do is attach a cheap point and shoot camera with a good enough optical zoom. So here are my questions: 1) Is the camera on the fc40 good enough to do what I need to do? 2) If we ended up with a point and shoot how could we get the camera to shoot when it is 100+ feet in the air. (time lapse? long timer?) 3) is there a specific camera any has used successfully? I feel that the wide angle on the gopro and the fc40 will distort the image too much to make it useful. Also, the expense of the point and shoot would be much less than a gopro. I'm trying to keep the camera cost below $150.