Question about DNP 23-23 material screen

Is that short projection distance what you intend to use?

It creates greater angles between the projected light rays and the screen and consequent gain droppoff.

Same with a viewer close to the screen.

from what I understand the minimum recommended throw distance for the 23-23 material is 1.8 throw ratio. Projecting onto a 110 inch from 7-8ft is way to close. I would say you will need to have the projector back atleast 13ft...even at 13 ft on 110 inch screen your not hitting the 1.8 throw ratio

Oh and the ideal setup is hard to say without knowing how high your ceiling is. I have a 9ft ceiling and the top of my projector lens is 18 inches down from the ceiling. So my screen at the very top is 18 inches from the ceiling.

I think what you are seeing is hot spotting. Yes it will get better at 13ft compared to 7ft. However I personally think sitting 7-8ft from a 110 inch screen is way to close. I have a 106 inch screen and sit 14 ft. I am moving to a 110, I figured 120 would be to large at 14ft.

Seating distance depends on what you are going for... If your intention is an immersive theater-like experience, 14ft is not too close for a 120" screen (check the sticky thread in this forum for theater standards & recommendations). For a living room, it may be overwhelming. I tend towards making sure the screen is no smaller than the THX max allowed viewing distance at my farthest seat and no larger than a 15 degree angle from the front-row eyes to the top of the screen when eye level is 1/4-1/3 from bottom of screen... Works out to 133" from 14.5ft for my front row. Others like even larger, but I get dizzy in action scenes much closer than that. Where do you sit when you go to a theater?

if you are truly concerned about the hot spotting then I would suggest you go with a throw ratio of 1.8 as this is there minimum. My guess is the 1.8 ratio is what they recommend to have minimal hotspotting and shimmering.

that is the recommended throw ratio for the projector to screen

http://www.bambooav.com/throw-distance-and-throw-ratios-explained.html

Your distance you sit shouldn't matter to much. Although I would think sitting closer would cause you to see things like shimmering more than if you were further away.

Try it and see

Correct; throw ratio is the ratio of projection distance to screen width.

Sitting farther back will help because the angle froim a viewer to the edges of the screen is less, putting you at a higher point on the gain curve.

A 110" diagonal screen is about 96" wide

How is the sparkle on the DNP HG? I'd like to see that screen before I purchase. I'm leaning towards BD since ill have some sconces on the sides of the room while watching sports.

Hi Folks,

I'm owner of Panasonic PT-AT6000E (PT-AE8000 US version) and for the last couple of months I have been looking for an ambient light screen.

I have decided to go with DNP, but can't decide whether I should opt for 08-85 or 23-23 material.

Throw distance will be at 13 ft. on either a 120" or 110" screen.

My goal is to be able to watch TV with controlled daylight or ambient room light. As I have complete light control I prefer to turn the living room to a bat-cave for movies or 3D.

If anyone has experience with DNP screens with Panasonic PT 8000/6000, I would like to get your insight on below questions.

1) At present with a standard white wall I can only enjoy 3D on Normal mode. How would 0.8 gain 08-85 material perform for 3D?
2) Would on 23-23 material picture "pop" too much in a bat-cave environment even on Eco Mode / Rec709?

Everyone agrees ISF certified 08-85 is better in contrast and no-hotspotting, but I have a feeling 3D may suffer on it.

Any experience you can share with DNP/Panny pairing with either 08-85 or 23-23, 2D/3D is highly appreciated!