brighter or more contrast for larger image??

Question

Would it be better to a higher contrast or brigther lumens count when it comes to producing a large projected image (250 inches) with a 720p DLP projector?

Answer 1

My screen outside is 32' X 16' and my pj has 1600 lumens and a 500:1 contrast. The picture is tremendous!

It's not so much how big the screen is that will make the difference, but moreso the amount of ambient light where you are watching it.

Answer 2

The most important feature to check is the projector's trow distance for that screen size.

That is to be sure that the projector is capable to project a 250 inch image given the space of your room (for most rooms that's imposible unless you have an auditorium and some projectors just trow images up to 200")....remember we're talking about home theater here...what you want is a comercial cinema sized screen.

Once that solved, definitely the lumens count is the feature that you must take in acount when you need to project a larger screen.

Contrast is focused on image quality and measures grayscale and color detail performance no mather the size of the screen. A higher contrast ratio means a better image. Contrast is most affected by room's ambient light. But the higher the lumens rating for a projector, the less contrast get affected by ambient light.

But i think that if the projector is featured to project a 250 inch or larger screen is very likely that the lumens rating is high enough to project that image with a reasonable good quality, so may be you can just go for a better image choosing a projector with higher contrast ratio.

Another problem with big images is resolution....and for that screen size you should look for a 1080p projector and use only native 1080p HD source material.

Answer 3

Hi.I think you would have to experiment with all the settings on your projector for an image of that size and depending how far back you are from the screen.