How big will the image be?
Image size is dependant on a number of things. None of which has much to do with the gobo it self. It has to do with the beam spread of the lighting fixture you are using and how far away you are from the projection surface. To calculate this you can use the below formulas: 1. Calculate: BEAM WIDTH of any angle (beam, field or cut-off) BEAM WIDTH = ANGLE x .018 x DISTANCE -or- BEAM WIDTH = MULTIPLYING FACTOR x DISTANCE 2. Calculate: MULTIPLYING FACTOR of any angle, as follows: BEAM WIDTH MF = ——– -or- MF = ANGLE x .018 DISTANCE 3. Calculate: ANGLE, as follows: MF BEAM WIDTH ANGLE = ——– -or- ANGLE = —————- .018 DIST.
