Originally Posted by Drexler
Craig, Rich, Toe
Thanks for you input! How do you feel the brightness stacks up at larger screensizes with a JVC? Is it adequate for 10' wide screens or on the dim side?
It really depends on the room, screen, projector mounting location/setup and viewer. With a new lamp, mid throw (for 2.35) and iris at -10 getting ~2.1 real world gain out of my HP in my black pit HT room, I find my 9' wide image (throwing ~126" diag 1.78 image to fill my 2.35 screen doing the zoom method) to be excellent for brightness, but if I were to run this same way with a 1.0 screen I would not be happy with my light output. Other members on here are happy with what I would consider a very dim image and others still watch what I would consider too bright of an image. Brightness is a very subjective thing it would seem for a variety of reasons.
Having said all that, for a 10' wide screen and a JVC, I would either want a HP screen with optimal projector mount to take advantage of the gain, or if going with a lower gain ~1.0 - 1.3 gain screen I would want to make sure to mount the projector closer to the screen to max light output. Some may disagree with that, but this is just what I would do in the case of a 10' wide screen in my room with my brightness preferences which again will change from viewer to viewer, room to room, screen to screen, etc.......
Only other thing I would say is watching an "adequately" bright picture vs a "brightness where I prefer it" picture can make a big difference in the overall viewing experience. I have viewed a number of adequately bright setups, but they pale in comparison to an image that puts out closer to what I consider ideal light output. The JVC RS67 put out an adequately bright image when I saw it at Cedia for example while the Sony put out a brighter more close to ideal brightness as far as what I like image. My ST130 9' 2.35 screen when I got it with my RS1 and RS40 put out an adequate brightness type pic running the projector the way I was, but moving up to the HP gave me a pic with brightness very close to how I would ideally want it and it made a BIG difference to my eyes.
Personally, I think the HP screen is the best overall screen you can use with a JVC in particular IF you can accommodate the strict mounting requirements to take advantage of the gain and you don't have a wide seating area (and preferably a single row as well). for 2d, you can tame the brightness as much as needed with low lamp, clamping down the iris and increasing your throw which will also get you more of that awesome native contrast (while still getting great brightness) which the JVCs are so well known for and for 3d open up the iris, high lamp and combined with the HP gain you will still get a nice relatively bright 3d pic vs your 2d. As long as I own a JVC in particular, my HP 2.8 is going nowhere.