CE Compass GGS LCD Optical Glass Screen Protector For Canon EOS 5D Mark III 5DIII 5D3 DSLR Camera Uses a 0.5mm ultrathin optical glass with at least 90% transmittance.With high transparency,the image is displayed in focus when applied Free of temperature and humidity Hardness and durability is as high as 8H and its elasticity and flexibility is 4kg/m2,preventing from being rubbed, scraped and bumped Matching quite well on the digital camera after applied Prevents the LCD screen to be infracted by sweat stain,smear,acid and alkali element and prolongs the life of the screen