In this episode, Mark Wallace shows us how to use ND filters in a studio environment. Mark will demonstrate how you can shoot with wide open apertures even with powerful studio strobes. Then, Mark will show us how we can use a similar effect outside and use a studio strobe to overpower the sun. On a side note, given that I’m a Nikon shooter, I just found out that the max sync speed of the 5D Mark II is 1/160th second. That’s SLOW!