Originally Posted by redpoint5
It just occurred to me that the boiler room (water heater and furnace room) could probably house all of my equipment, so I checked it out. Turns out the ceiling in that room exposes the ceiling joists, so I have extremely easy access to the ceiling in the living room. This should make installation pretty darn easy. My plan is to put my receiver, HTPC, BluRay player (Playstation 3 for now), and any other gear in the boiler room out of sight. That means my receiver will need to run off RF somehow, or run fiber optic somewhere (projector perhaps?) so the IR remote will work.
The quality seems very good to me projected against my light green wall, with factory settings, and with lossy versions of a few movies I streamed from a laptop. I'll need to replace the flimsy curtains over the slider door which lets a ton of light in, but once that's controlled, I'm not sure I'll need to do much more to control light. Perhaps place something dark on the ceiling and the 2 edge walls that the image is projected against, but I didn't find the amount of reflected light to be bothersome... then again it's projected against a green wall, so it would probably be more bothersome if the image was projected against a white wall.
Of course, the color temperature looked cool to me, probably because the green wall was shifting the color.
Next steps (correct me if I'm wrong) is:
* Get blackout curtains for sliding door
1. Determine seating arrangement and gather furniture
2. Determine ceiling mounting position and purchase ceiling mount
3. Purchase HDMI cable
4. Install an outlet and mount in the ceiling (perhaps I can steal power from the ceiling fan?)
5. Determine ideal 5.1 speaker locations and run speaker cable (spool of 14 awg)
6. Experiment with treating walls/ceiling with black curtains
7. Last, design 4 ceiling speaker Atmos and upgrade my AVR
In the attached RoomScan, the right side of the photo is the 11' wall the projected image will be on. Top side is the doorway to the boiler room and the bar. Bottom side is where the slider door is.
Finally- My original question was TV vs projector, and even if not a single thing improved about my setup, I'd take projector over an 85" TV all day, every day. Filling that wall with an image is a thing of glory, even if it doesn't have the full color palette or the finest resolution, etc. Best $630 I've spent this year by far.
Black levels and contrast are affected by light from windows/lights/walls (reflections). To counter this, light needs to be eliminated.
The window and light fixtures can be resolved more easily, but for wall reflections dark paint or fabric would need to be used. The region where this can have the most effect is about 6-8 feet from the screen (walls and ceiling).
From the pictures you already have an enclosure for the screen. Even that small wall section (of about 1 foot?) would be very beneficial if treated with some sort of paint/fabric.
Also for bright colored walls and or lights on viewing a grey or alr screen would be beneficial:
Originally Posted by redpoint5
I bought an adjustable ceiling mount for the projector and a 25' power and HDMI cable. I figured since the mount adjusts, I didn't need to do math, but now I'm thinking it probably doesn't drop enough. It's a 12' ceiling, and the projector is 18' from the wall (midway in the zoom range). I'm projecting a 150" image, which is nearly 6' tall. To center the image I would have 3 feet of wall above the screen, and 3 feet of wall below. With a 2' drop on the mount and 10" drop from the lens, I'm not quite low enough. Maybe I want a 3' drop from the 12' ceiling?
I'm not even sure I should center the image. It seems to me the lower I can project the screen, the more natural the view. Maybe I want 4' of blank wall at the top and only 2' at the bottom? What do you think?
When positioning the screen, eye level needs to be 1/3rd from the bottom of the screen. 150" screen height is 73.5"/186.8cm.
To avoid having to use keystone the projector needs to be level to the floor and perpendicular to the screen.
Keystone is software and should be avoided.
The offset specification is used to calculate the height the projector (center of the lens) needs to be from the visible top of the screen.
This model has 110%±2.5% offset. https://www.benq.eu/en-eu/projector/...fications.html
Which means the center of the lens needs to be 10% (±2.5%) (of the height of the screen) from the visible top of the screen (ceiling mount).
For 150" screen that would be 7.35 inches/18.68cm (±2.5%).
The closer a projector is the brighter and less sharp it will be, opposite for the farthest.