Something experimental, just for fun, done some time ago with Mandelbulber 2.19. Chromatic Aberration feature is a cool implementation within Mandelbulber.
Params in comments.
All images belong to batjorge.com. Some rights reserved. This work is licensed under a http://creativecommons.org/licenses/by-nc-nd/3.0/
# Mandelbulber settings file
# version 2.19
# only modified parameters
[main_parameters]
ambient_occlusion_enabled true;
ambient_occlusion_mode 1;
background_3_colors_enable false;
background_color_1 0000 0000 0000;
camera 29,11331705725335 -118,6797143556135 -0,7437680546005651;
camera_distance_to_target 10,99897670745849;
camera_rotation 25,99610045037108 3,186093007699132 0,7926194537084167;
camera_top 0,03679233917774979 -0,04388778774156275 0,9983587460752678;
check_for_bailout_1 false;
DOF_enabled true;
DOF_focus 11,2679386138916;
DOF_MC_CA_camera_dispersion 8;
DOF_MC_CA_dispersion_gain 6;
DOF_MC_CA_enable true;
DOF_MC_global_illumination true;
DOF_monte_carlo true;
dont_add_c_constant_1 true;
fake_lights_color 1000 2100 2600;
fake_lights_enabled true;
fake_lights_intensity 4;
fake_lights_orbit_rotation 0 90 0;
fake_lights_orbit_trap 0 3 2;
fake_lights_orbit_trap_shape circle;
fake_lights_orbit_trap_size 5;
fake_lights_thickness 0,125;
fake_lights_visibility 128;
fake_lights_visibility_size 7;
flight_last_to_render 0;
formula_1 81;
formula_2 1025;
formula_stop_iteration_1 12;
fov 0,4;
fractal_rotation 0 90 0;
hybrid_fractal_enable true;
image_height 540;
image_proportion 4;
image_width 960;
keyframe_last_to_render 0;
mat1_is_defined true;
mat1_surface_color 2f00 2f00 2f00;
mat1_surface_color_gradient 0 cdf197 955 b2e364 1053 0d6672 1445 713a9f 2453 173c93 2865 d3e96d 3366 e35059 3935 b05b61 4460 d4154a 4715 c87521 4994 d7ab5d 5500 fdd67d 5722 e72b47 6495 6c72d3 6678 ab1d1e 9146 34bef7 9744 9db255;
mat1_surface_gradient_enable false;
mat2_is_defined true;
mat2_metallic false;
mat2_name blue plastic;
mat2_reflectance 0,9;
mat2_specular 1;
mat2_specular_width 1;
mat2_surface_color 1000 1000 1000;
mat2_surface_color_gradient 0 fd6029 999 698403 1999 fff59b 2999 f5bd22 3999 0b5e87 5000 c68876 5999 a51c64 7000 3b9fee 7999 d4ffd4 9000 aba53c;
mat2_use_colors_from_palette false;
MC_soft_shadows_enable true;
primitive_plane_1_enabled true;
primitive_plane_1_material_id 2;
primitive_plane_1_position 0 0 -1,445274074074075;
raytraced_reflections true;
reflections_max 1;
repeat 12 12 0;
target 24,29980770124873 -108,808852608194 -0,1324541792449481;
use_default_bailout false;
view_distance_max 765,685424949238;
[fractal_1]
transf_addition_constant -1 0 0;
transf_constant_multiplier_000 -1,4 0 0;
transf_function_enabled_false true;
transf_function_enabledx false;
transf_function_enabledy false;
transf_function_enabledz false;
transf_offset -0,1;
transf_scale 0,8;
transf_scale_1 0,7;
transf_stop_iterations_A 5;
[fractal_2]
mandelbox_color 0,13 0,15 0,47;
transf_addition_constant 0,4 0 0;
transf_function_enabled_false true;
transf_offset_000 6,4 0 0;
transf_stop_iterations_A 12;