as you, I don`t use the new dynamic iris feature as I don`t see that I have any reason to in the dark room,
Hi Ideal AV: I'm curious about what you wrote there. When you say you don't see any reason to use the DI in a dark room, why is that? Because a dark room - and the darker the room! - is exactly when a DI should be most useful. It's in not-perfectly-dark rooms where it's usefulness would be compromised.
As I mentioned earlier, it's precisely because my room is so dark, surrounded in black velvet, that the DI (ILA) is proven so beneficial, because without it low APL scenes glow more obviously "gray" against the blackness of my room. The ILA closes more, (and adjusts gamma to retain detail), making black levels lower and more convincing in just those types of dark shots where you need the deepest black levels.
So, I'm just wondering about your reasoning there. Thanks.
I have yet to see an effective implementation of a DI anywhere, interesting how this 'auto 2' setting is producing such wonderful 'artificial' results. I must get a look at one.
I guess it depends on what you mean by "effective."
One reason that some reviewers and some AV enthusiasts have thought JVC should try a DI has to do with
it's already great native contrast. One school of thought was that a DI is exactly what JVC doesn't need, because it already has high native contrast and good black levels. But it's been pointed out, that is also precisely why JVC was in a position to implement a more effective, invisible DI than other manufacturers: because the DI would not have to work in nearly as extreme a range as a projector with poor native contrast. It's when you have a DI, and gamma, having to do really big ranges of change that "pumping" and artifacts tend to become most intrusive. JVC just has to lower the black floor a bit more to make it look really black, so you it's not working as hard and artifacts tend to be less frequent.
And that is exactly the route JVC says they have taken: when they brag about their ILA implementation, they emphasize that their native contrast levels allow for more subtle use of a DI.
(Not that there aren't more caveats involved, but that's the basic idea for why a DI on a JVC isn't automatically the bad idea some people presume).