The great evolution of the macro ring flash here comes the latest model with professional TTL function in TTL mode set the shooting mode as M / AV / TV then set the speedlite manually through the lens of the cameraand get the perfect performance. Brand SkyBlue Model MK-14EXM Quantity 1 piece(s) per pack Color Black Material ABS + Brass Compatible Camera Brand Canon Compatible Models Canon 7D 5D2 5D3 600D 5D 50D LED Quantity 2 x LED semi-ring tubes Color Temperature 5500 K Brightness 300 Lumens Light Angle 80 degrees (vertical) / 80 degrees (horizontal)