Glossy glass looks superb until the afternoon sun finds it. The aluminium iMac 21.5 A1311, built between 2009 and 2011, is particularly fond of reflections. An iMac 21.5 A1311 screen protector calms them down: anti-glare protector films diffuse harsh light, while privacy versions hide your screen from wandering eyes. Compare both with our comparison tool.
