''Brightness. The HW30ES has a very bright cinema mode - 846 lumens with the lamp at full power. And while Low lamp mode reduces light output by almost 40%, that still leaves you with 540 lumens. Now, the higher in contrast a projector is, the less brightness it needs in order to look its best. So with the HW30ES, 540 lumens can be too much light in a dark room. To put things in perspective, a truly dark theater only requires about 300 lumens to light up a 100" diagonal screen, and going to 140" diagonal (double the screen area) still only needs 600--less than that if you use a higher-gain screen. At 540 lumens, the HW30ES looks best on a 120" to 130" diagonal screen in a dark room with a screen gain of 1.0-1.3. Now, those with smaller screens can still lower light output using the manual iris option, which is a great way to cut brightness down to a more appropriate level for your environment. This of course disallows the use of the projector's auto iris, but it can also save you from the eye strain of a too-bright picture on a too-small screen.''
Από το review του projectorcentral. Πολύ πιο λογικά και προσγειωμένα συμπεράσματα και νουμεράκια. Όσο για το κόντραστ:
''Contrast. On the HW30ES, black is quite deep thanks to the aggressive auto-iris system, which strikes a good balance between enhancing black and keeping the picture vibrant and watchable. On a completely black screen, it can be difficult to tell that the HW30ES is running at all. While watching movies and video with mixed illumination levels (i.e. not a black test pattern), black level is on par with other projectors in this price range. Shadow detail is likewise competitive, though the default gamma settings can crush shadows in some instances. Switching to Gamma 8 makes the picture much more balanced and open in these areas.
If you are not a fan of auto irises, the HW30ES has a manual iris option as well. This can be useful in darkened theaters where the Cinema 1 preset is simply too bright, even after switching to Low lamp mode. The scale runs from 0 to 100, with 0 being fully closed and 100 being fully open. In total, the iris can decrease light output by 55%, bringing Cinema 1 to 380 lumens. In a dark room with a screen size of 120" diagonal, we ended up using Cinema 1 in Low lamp mode with the iris at 45, giving us about 400 lumens. The projector's contrast ensures that the image doesn't look washed out or dull at this setting.''
Φαίνεται, εσχάτως, και όλοι οι υπόλοιποι προβολείς παίζουν με ansi 4000:1!!!!:flipout::flipout::flipout: