Simon Miya

And it's film crews. ;)

Hi Travis! I think the most important thing is to not use too much juice in the first place. A little goes a long way. If there is enough there to possibly seep into the lens body, it's way too much. Using too much will often leave streaks as well.

I wholeheartedly second that. Those two books are the only assisting books I ever needed. I still carry them in my Larry bag for reference, and to lend to interns and hopefuls.

Look at the rods. They point in exactly the same direction as the lens. Once you are close, look into the lens and try to see the Arriglow/Panaglow. When you see the red glow in the middle of the lens, your eyes are center frame. After a while, it becomes second nature. At this point, I feel like a failure if I don't nail the center of frame with the slate every time.