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The SimuLens™ system mimics certain optical effects found in all camera lenses adding more realism to the render.

• Aperture Map: specifies the shape of the diaphragm which models the pattern of light that reaches the film. For example, a circular diaphragm will create circular patterns, a hexagonal diaphragm will create 6 light streaks. The aperture map should be black with white specifying the shape and size of the aperture.
• Obstacle Map: a black & white map to control diffraction effects. Aperture map is required to use the obstacle map. The two maps must have the same resolution. The obstacle map should be white with black areas specifying dirt or scratches on the lens surface.
• Diffraction: controls diffraction / glare intensity.
• Frequency: controls the frequency of coloring in the diffraction effect. Higher values will make the patterns denser.
• Scattering: specifies the instensity of scattering, commonly known as bloom.
• Devignetting: Vignetting is an artifact that darkens an image around the edges due to camera optics. The Devignetting slider removes the vignetting effect partially or completely by dragging it from 0 to 100%. In the real world, the more wide-angle the lens is (for example, a focal length of 24mm), the more pronounced the vignetting will be.