Smatticus
Active Member
So I'm focusing my first rig consisting of LED ellipsoidals for the area front lights and I'm noticing an interesting artifact that I'm not used to with incandescent ellipsoidals. The LED elllipsoidals are Source Four LED Series 2 Lustr+ with EDLT tubes. Each individual beam field appears to be extremely flat and even, something we have generally always strived for in our bench focus of incandescent ellipsoidals. However, it is so even that where the beams of neighboring areas overlap with one another there is a noticeable bump in brightness. With incandescent ellipsoidals the brightness of the beam tends to fall off toward the edge of the field so that when you overlap beams you get about the same brightness in the area overlaps as you do in the center of the areas.
Has anyone else noticed this and how have you resolved it? Is there something basic I'm missing? Right now the best answer appears to be to utilize a higher degree of overlap than would traditionally be required (the edge of one beam has to fall through the middle of its neighboring beam). I'm planning to add diffusion to the fixtures which I am hoping will help somewhat as well.
Has anyone else noticed this and how have you resolved it? Is there something basic I'm missing? Right now the best answer appears to be to utilize a higher degree of overlap than would traditionally be required (the edge of one beam has to fall through the middle of its neighboring beam). I'm planning to add diffusion to the fixtures which I am hoping will help somewhat as well.