Product still life featuring a metallic cube with gradient iridescent finish transitioning through rainbow spectrum colors from pink to blue to purple, exhibiting holographic or oil-slick effect, photographed against neutral background, precise studio lighting creating highlights that emphasize the reflective quality and color shifts, shot with a 100mm macro lens at f/8 for sharp detail across all edges, in the style of contemporary product photography for tech accessories or modern design objects, emphasizing futuristic aesthetic and the interplay of light with reflective surfaces.