To clarify one thing (+15 has been mentioned).....the range of Iris settings in JVC's is 0 to -15 - 0 is wide open, -15 is fully closed.
I guess I'm confused again. To my way of thinking the Dynamic Iris has to go further closed than -15. The max native contrast occurs with an iris setting -15 (along with max throw, etc). But these projectors have a dynamic spec that is 10 times betetr than native. If the iris only closes to -15 how are they improving CR from 120,000:1 to 1,200,000:1??
The dynamic iris has to be closing beyond -15 even though one cannot manually set it below -15.