I doubt they use any magnification. The shots are probably with a macro lens and dslr and fancy lighting. It's just a product shot, you have a light box a dslr on a tripod /stand and lights. If it's shot at 1 to 1, you can get crazy resolution (think of a coin taking the exact same space as a full frame chip) on a 24 megapixel camera chip that coin will take 18-20 megapixels, sourced to you phone or computer it can fill the screen of an HD monitor, it can almost fill the screen of a 4K monitor. No magnification needed.