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Portion of a Julia set based on the formula 1/(z^2 + (1/2 + i)) + c, c = 0.1247571 – 0.3935008i . It was generated with the “circle” orbit trap option, and the stalks were mapped with five distinct color maps.
An upper and lower limt were both specified for the orbit trap. This causes the trap to have a “hole” in it. This variation often has more interest than a solid orbit trap because the hole allows you to glimpse detail that would otherwise be hidden behind the larger trap images.