>> But there must be a level of light where both cones and rods are within their dynamic range. What am I missing? I am not sure if human vision is using one o

>> But there must be a level of light where both cones and rods are within their dynamic range. What am I missing? I am not sure if human vision is using one or the other. When both rods and cones are within the dynamic range, possibly response from both get utilized by the brain. I am not sure.