The Difference Between an F-Stop And a T-Stop

The most popularly known imaging parameter to measure the amount of light coming through the lens is F-Stop, referring to the aperture of the lens. However, not many people know of what T-Stop or the light transmission rate means, and how is that significant in comparison to the F-Stop. We have found this short and simple video by Channel8 explaining the difference between F-Stop and T-Stop, and why that matters.