Originally Posted by price3
Wow, good review. I wonder if the dynamic iris is improved from the one some called slow in the 550.
As I indicated, I didn't have the Cinema 400 as long as I would have liked, due to personal vacation, and having to get it back to Epson for the next reviewer.
So, I didn't get as much relaxed movie watching time, as I normally do, which is where I might spot slow iris's and slow lamps.
I, therefore wont comment on whether it is faster than the old 550, but I can say, that during the maybe 6 hours of general viewing - I personally did not have it "jump out at me" so that I would notice, unless I was looking for it.
I have found that every projector with dynamic iris's and/or frame by frame brightening/dimming lamps, is detectable on the right scenes if looking for it.
The one time I do recall noticing, was during a HD football game as the camera cut from a bright scene of the sunlit field, to players on the sideline in the shade, with no really bright areas in the sideline frame. I did notice that the first few of frames brightened slightly over a fraction of a second. The iris, no doubt - althought it could also be their camera, but in this case, I would say the iris.
It's a trade off with dynamic iris's and lamps. Too fast an adjust tends to be more noticeable, as can too slow. Or, let me put it this way, the concept is inherently flawed, there is no one best speed for all kinds of scene changes, and radical changes within scenes.
Bottom line, in my limited viewing (relative to any of you owners), the dynamic iris never jumped out at me enough to make me want to turn it off.
By comparison, last year's Sanyo Z4 review, their dynamic lamp was sufficiently noticeable, that I permanently turned it off.
Remember it's only a problem if you notice it when you are just watching content, and not watching for the iris's changes. If you are watching for the effect of the iris, you will see it on any projector that uses it, although what type of scenes/scene changes you spot it on, will vary based on how that projector's iris works. -art
BTW, for those of you waiting and seeing - I have the Panny AX100U here now (watching football at the moment). If possible, it is even brighter than the Epson, although I'll be measuring and calibrating this evening. Review should post Wednesday evening. Sooner if I can, but not likely.
I'm also trying to find out from Panasonic about the panels in the AX100U, my initial impression is that the AX100U isn't as soft looking as the last generation "smooth screen" panels made the 900u look. A real plus for this new panny.
I'm a huge fan of brighter projectors - I have yet to meet anyone who prefers to watch sports and most HDTV in a really dark room. Both the Cinema 400 and the AX100u have the muscle to have a modestly well lit room and still enjoy a football game. For movie watching, not even these projectors have anywhere near enough lumens to enjoy (even with modest lighting) - a really dark scene, from any movie. That's the advantage of sports, sitcoms, and most TV/HDTV content - no dark scenes.
The perfect projector for everything sports with no window shades, and movies at night, I fear, will have to have 5000-6000 lumens in brightest mode, and drop down to as low as 500 in dimmest. Two more years maybe, maybe less. The manufacturers are not convinced, so - they won't be cheap. I think, though the future AX100U, the Epson 400 and 810, may convince manufacturer that more than 2000 lumens, is even better... so next year, maybe Epson will have a 2500 lumen, and Panaonic a 3000?
Good hunting! -art