Originally Posted by rrseth
Hi all, I have been a lurker on these forums for well over a decade, love the knowledge sharing and have made a lot of informed choices over the years due to the information found here, so thank you! I'm finally getting ready to build my dream backyard theater, have a set up already indoors. Here are some quick specs:
- Screen size will be a CIH set up, 18' wide for 2.35 and smaller for 16:9, whatever the math is on that, 2.35 is important to me
- Projector will project from one side of a to be built swimming pool to the other side where the screen will be, throw distance shouldn't be an issue
- Will likely be picking a screen from Carl's place, something outdoor rated, samples are en route
- Want a projector with lens memory so I don't have to screw around with manual zoom as projector will be on ceiling
I am considering an Epson HC 4010 or a 5040UB, would appreciate any opinions on where these will be bright enough. I'm guessing that due to normal ambient light the contrast levels on the 5040UB won't matter much, but can't say for sure unless I test both. Budget is max $2k. I would really appreciate some insights into whether these will work well or not, or if there are better alternatives out there. Pictures of your own backyard set up will also be much appreciated!
Yes, both will work.
With a 2.35:1 screen (92" x 216" - 216 diagonal) you would have ~16-18 foot lamberts assuming Dynamic/full power lamp settings on a new lamp. Dynamic lamp setting usually has a little green push on the Epson's and calibrating to more accurate color will reduce light output/foot lambert value considerably.
A 16:9 screen assuming CIH (92" x 163" - 187" diagonal) would give you ~24 foot lamberts again assuming Dynamic/full power lamp settings on a new lamp. With some calibration, you should be able to get ~14-18 foot lamberts.
So, while the Epson 4010/5040 will work, and I would not be afraid to use either of them, you would benefit from a higher lumen output unit. Especially so for the scope formatted movies. Something around 3000-4000 lumes would be ideal. With outdoor projection, you always have a little competition form the moon and starlight and everyone wants to start the movie earlier so extra lumen out put is always a good thing. BTW, regardless of lumen output, don't expect to get any kind of picture quality until around 30 minuets after sundown or what is refereed to as "end of civil twilight". A better choice might be the Epson HC3700 with its higher lumen output
The Carl's FlexiWhite finished edge screen is a very good unit for outdoor use. It's able to stand up to some moisture (rain) and is mildew resistant. It's got a little gain and has a very nice projection surface. It's my go to choice for value and quality for outdoor use.
I would suggest that you read through the this thread: https://www.avsforum.com/forum/159-o...or-screen.html
It's very similar to what you want to do and as a build thread, it will walk you through most of the questions that you will have or that will pop up. He does use a slightly larger scope sized screen, 9' x 21' - 272" diagonal. He was able to buy a refurbished Epson G7500U.
Here's a picture of the G7500 on his 272" scope screen: