GGS III LCD Screen Protector glass for CANON 1D Mark IV GGS III LCD Screen Protector optical glass for CANON EOS 1D Mark IV IntroductionThis LCD Screen protector uses a 0.5mm ultrathin optical glass with at least 90% transmittance. The image is displayed in focus when applied.With special treatment, it's hardness and durability is close to or as high as mohs scale 8H, preventing the LCD screen ...