0.4x Super Fisheye Adapter — Cinema-Quality Lens for Sony HDR-PJ670

This 0.4x super fisheye adapter creates an extreme fisheye appearance with a strong barrel distortion while maintaining full-frame coverage without vignetting. It dramatically exaggerates depth, pulling foreground subjects closer and making distant objects recede toward the horizon. Optical construction uses high-index, low-dispersion glass combined with updated barrel materials and advanced anti-reflection coatings. The design was developed using computer-aided-design / computer-aided-manufacturing (CAD/CAM) techniques. Crystal optics AR coating minimizes light loss and flare to less than 1% per surface. BAB (Internal Black Almite Barrel) features a black matte satin finish to cut internal reflections, and BRG (Black Rimmed Glass) helps prevent light from reflecting off the glass edge.