The 0.4x super fisheye adapter provides an extreme fisheye effect and a high degree of barrel distortion without vignetting it exaggerates depth by pulling nearby objects closer and causing distant objects to recede into the horizon. advances in high-index / low-dispersion optical glasses, new barrel materials, and anti-reflection coatings, along with the latest in computer-aided-design / computer-aided-manufacturing crystal optics ar coating reduces light loss and flare to less than 1% per surface bab (internal black almite barrel) black matte satin finish which reduces reflections. brg (black rimmed glass) reduces the chance of light reflecting off the edge.
