Thanks all! Mhemling, I used a fan diffraction grating from Dragonlasers on the shots. I have only photographed in my backyard twice , the other night in the snow and these in the fog so I don't know if my neighbors saw anything. I wanted to use my matrix diffraction gratings but the beams shined into my neighbors windows so I didn't use them. I was very careful to keep the beams on my fence. It would have been nice to shoot over thelasers over my fence for long beams but I am very paranoid about using my lasers outdoors, but as long as I don't point them in the air I should be ok