Manufacturer's ratings are essentially meaningless. JVC's ratings are considered to be fairly conservative, whereas Sony's are more inflated. ProjectorCentral's calculations are based on the reviewed numbers where available, or the manufacturer's spec if not. They've reviewed the HW10 and not the FPJ1, so the numbers aren't comparable. I've also found that the calculator just isn't that reliable anyway.
From their HW10 review:
Originally Posted by ProjectorCentral
Unlike previous Sony 1080p projectors, the HW10 is a powerhouse in video optimized mode at 697 ANSI lumens. In a light-controlled room, that is enough light to power more or less any screen size you choose. In fact, on screens of 120" or less, it can be too much light and may lead to eye strain unless you tone it down a bit. Fortunately, low lamp mode on the HW10 drops lumen output 32% to 477 lumens, which is still plenty of light for many screens in light-controlled rooms.
I would certainly agree with their assessment. In my room with the projector almost at max zoom, even the low bulb mode is too bright for me on my 118" Carada Brilliant White screen and I run with a manual iris setting of 50%. This is a good thing though, as all bulbs dim over time, so it gives me a lot of room to compensate for it.
From their RS2 review (the Pioneer is a rebranded RS2) they state 450 ANSI lumens in its "optimized" setting, so the HW10 should be quite a lot brighter.
Originally Posted by SonyHome
How does the picture from HW10 compare to any of these TVs I mentioned above? Does the brightness drop off greatly as you put few hundred hours in the lamp on HW10? Will I have troubles with 126" screen from 13' away? My HT will have no windows so I can totally control the light but I would like the option to watch in some light if possible.
Projectors have a different "look" to most TVs, so it's hard to say really. If you like the Sony look, you should get something similar with the HW10 though.
From what I've read, you will lose about 30% brightness in the first hundred hours or so with most projectors, and then it will be a gradual decline. There is more than enough brightness from the HW10 to compensate for that with most screen sizes though, and after approx. 120 hours viewing the only change I have made is going from 40% to 50% on the iris, running in the low bulb mode. I'm almost hoping that it does dim some more, as I'd like to use the auto iris, but I find it's too bright at times. (I wish there was a maximum setting for the iris, as it makes a good improvement to contrast)
With a projector, any
amount of light will reduce the image quality. The black levels can only be as dark as the room is, so turning on a lighteven a very dim onecan have a big effect on image quality.
Certainly, if you do plan on having a light on (though I'm sure once you see how it looks you won't want to) there's no point in considering one of the JVCs and you want as much light as possible from the projector.
Originally Posted by SonyHome
From what I been reading it seems like regardless of price the quality of picture you get from these digital projectors are pretty equivalent although you may get less features. Do you agree with that?
I wouldn't agree with that at all. For a start, you have different technologies. LCD, LCoS and DLP which all have a different look to them. (LCoS looks like an upgraded version of LCD and DLP is quite different)
You then have the colour/tonal reproduction of the displays. Some are capable of very accurate colour, whereas others (like the older JVCs) are focused on simply producing the most vivid colours they can, rather than creating (to my eyes) a natural looking picture. Contrast is another pretty big difference between projectors, with some doing significantly better than others.