This is a nifty low cost device which allows you to magnify up to 5X and project a design, drawing, photo, or a small 3D object onto your canvas where you can then trace it or paint it.
You place your image under the Projecta Scope (it handles about a 4" x 4" area at a time, so you do larger designs in segments). Hang your canvas on a wall and adjust the Projecta Scope so your design is projected in the size and position you wish. Then trace the design onto the fabric. It works quite well and is a tremendous time saver. It uses a 75 watt household bulb (not included) and normal house current. Since there is no fan, stop and let it cool down if it gets too hot.