cogitech wrote:
The "f1.8" is what I question. If that was the case, then I would have difficulty achieving critical focus at f1.2, and I don't.
You will only have difficulty with lenses that shifts focus. Like I said, try the DOF preview. You won't see any difference between f/1.2 and f/1.8.
Dpic_arctic wrote:
So I assume the Maxwell treated screen is supposed to transmit more light while at the same time maintaining a true, accurate representation of the lenses aperture?
I have no idea. The grain on the screen surface can be designed in many ways, but you'll always lose some light with slower lenses, if the screen should show the DOF of large apertures. There simply is no light falling in at those angles with a slow lens. Think of the surface as built up by very small prisms, allowing light to fall through at different angles. Every little grain has its own angle, and a very bright screen has only prisms at steep angles.