Features: Made of plastic with fine workmanship, the material is ideal for light transmission, and most importantly, it doesn't cause color casts in your flash! Simply attach it to your flash when in use. It's especially suitable for portrait fill-in flash photography on sunny days, news photography, and macro landscape photography, etc. No adjustments are required except that the maximum distance is reduced by a factor of 2.5. Except in TTL mode, do not use the diffuser in the normal direct overhead mode. For best results, a 45-degree tilt should be used. The film is transparent over time. At a certain thickness, the molecule appears in a grid arrangement, allowing the light to spread and become translucent. The temperature resistance is 130 degrees, and it has excellent flexibility. Product Function: It can make the flash soft and even through diffuse reflection and weaken the shadow of the object being photographed due to the light. Make photos look more natural. Through the high-temperature-resistant transparent plastic, it is converted into soft diffused light, eliminating the high light points on the portrait, making your photos beautiful and natural. Specifications: Material: Plastic Size: Approx. 5.4x16.5x0.85cm/2.13x6.5x0.33in For CANON600EX-RT Flash Note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package Includes: 1X Flash Diffuser