Not logged in
 
Jump to page: <<<12>>> (2 total)
Author
Topic: New projector for 500 inch diagonal drive in movie screen
member
Joined: Oct 8, 2020
Posts: 4
Reply to PostAlert Moderator
Hi,
I am in the outdoor movie business. We have been using 20 foot VXP inflatable screens for a long time with Canon 6K lcos projectors that have worked just fine. Most of my business has been for towns, colleges and high school's for movie lawn nights outdoors. With Covid, of course, the Drive in experience as you all know is huge. I have my screen picked out, a 40 foot wide x 22.5 foot high screen size. I need a projector that will be able to project onto it.
I was looking at these models to see if just by chance it was actually a good product. Any thoughts?
The brand is Coolview, from China
Model Name CVX8400+,XGA CVW8500+,WXGA720P CVWU8600+,WUXGA

They are 10K and 13k, 3 lcd projectors for what I believe is a good price. Thanks for your help.

http://www.coolviewdisplay.com/e_products_show/large-venue-10000-lumens-projector-0-CVWU8600-202.html
moderator
Joined: Mar 28, 2005
Posts: 12,994
Reply to PostAlert Moderator
I know nothing about the company that you are linking to. This is a huge red flag to me that they've made so little impact in the projection community that they are basically unheard of.

You will want to keep in mind that a 6,000 lumen projector on a 20 foot screen, if it is 'just enough' to make that image look good, will need FOUR TIMES the brightness to achieve that same brightness on a 40 foot screen. That 40' screen is four times the surface area.

So, you are in the realm of 20,000+ lumen projectors, which are commonplace in the movie theater industry.

I'm not sure what budget is, but I would be looking at nothing less than TWO 10,000 lumen projectors in a stack, which is tough to keep properly aligned.

I also have some issues with their power draw and lumen claim.
That is, for Christie Digital, using traditional lamps, to get 10,000 lumens out of a projector...
They need 1,300 watts! That's two and a half times the power draw compared to the models you linked. It's basic physics, and somehow this manufacturer is overcoming it, and it looks like they are using traditional lamps instead of lasers to do so.

I think they are not being honest about their claims and I would never recommend an unheard of brand over a Panasonic, Sony, Christie, etc.

I would be looking at this list, at the minimum:
https://www.projectorcentral.com/projectors.cfm?g=1&hide=0&st=1&exp1=1&r=&br=10000-15000&c=&w=&db=&ar=Wide+%2816%3A9-10%29&zr=&wt=<g=&ll=&wr=&dt=&mfg=&p=&t=&pjl=0&pjw=0&pjh=0&td=&is=&i=d&tr=&tr2=&exp5=1&oop=1&sort=%24&sz=15#list

Take note: All models on the top of that list have one very important thing in common: They are ALL laser! Solid state light engines are truly becoming a staple in professional projection.

If I was getting serious about doing a theater level front projection setup, I would likely be looking at NEC, Sony, and other theater specific models which are designed for 20,000+ lumens of output from day one.

Short of that, it is stuff from this list:
https://www.projectorcentral.com/projectors.cfm?g=1&hide=0&st=1&exp1=1&r=&br=20000&br=50000&c=&w=&db=&ar=Wide+%2816%3A9-10%29&zr=&wt=<g=&ll=&wr=&dt=&mfg=&p=&t=&pjl=0&pjw=0&pjh=0&td=&is=&i=d&tr=&tr2=&exp5=1&oop=1&sort=%24&sz=15#list

If I was really on a budget, I would check the Epson refurb website.
https://epson.com/Clearance-Center/Projectors-for-Work/Pro-L1505U-Laser-WUXGA-3LCD-Projector-w-4K-Enhancement-%26-Standard-Lens---Refurbished/p/V11H792120-N
AV Integrated - Theater, whole house audio, and technology consultation during the build and installation process in the Washington, DC metropolitan area.
member
Joined: Oct 8, 2020
Posts: 4
Reply to PostAlert Moderator
Would you consider a used non laser 12k unit off ebay?
I'm really on a budget and cannot afford a laser unit at this time.
Some place called AV Surplus has 4 of these used units left

12,000 LUMENS Sanyo PLC-XF46N EIKI LC-XT4/ Christie LX120 Large Venue Projector

For $1800 plus shipping, maybe an idea to get me by until I can buy a laser unit?
moderator
Joined: Mar 28, 2005
Posts: 12,994
Reply to PostAlert Moderator
I'm not sure what quality you would be expecting. Those units are amazing when it comes to brightness. They are really noisy, which shouldn't matter a bit. They are VERY low resolution by today's standards. With 1080 resolution being a near minimum (1920x1080) these XGA resolution models (1024x768) have about 1/3 the resolution of normal HD. They also aren't widescreen and won't support a 1080p source, so you will have to feed it much lower resolution than typical.

Will it work?

Maybe. The image won't look that great, but if you use two or three of them, and keep one available as a hot spare, then it may look downright impressive in terms of brightness. Image quality itself will be so-so at best.

If budget was about $10K total, then I might try to land four of these units instead:
https://epson.com/Clearance-Center/Projectors-for-Work/Pro-L1100U-Laser-WUXGA-3LCD-Projector-w-4K-Enhancement-%26-Standard-Lens---Refurbished/p/V11H735020-N

You get a full warranty, which is really good, and you get laser built in with enough total light output from 3 or 4 of them to fill the screen.

Keep in mind if you get 4:3 projectors, and project wide screen, you are throwing away about 1/3 of the brightness off screen. So, 12,000 lumens becomes 8,000 lumens max. Plus you throw away resolution. I think it is like 1024x574 or something like that. About half a million pixels on screen.

Compare that to the Epson laser 6,000 lumen model which will get you almost every bit of 6,000 lumens on screen, all the time, with over 2,000,000 pixels on screen at all times.

PLUS: The resale value if you do move away from it, will be much higher with the Epson than a very old Sanyo.

So, that would be my strongest recommendation if you are going with a multi-projector stack.
AV Integrated - Theater, whole house audio, and technology consultation during the build and installation process in the Washington, DC metropolitan area.
member
Joined: Oct 8, 2020
Posts: 4
Reply to PostAlert Moderator
Quote (AV_Integrated on Oct 9, 2020 7:00 AM):
I'm not sure what quality you would be expecting. Those units are amazing when it comes to brightness. They are really noisy, which shouldn't matter a bit. They are VERY low resolution by today's standards. With 1080 resolution being a near minimum (1920x1080) these XGA resolution models (1024x768) have about 1/3 the resolution of normal HD. They also aren't widescreen and won't support a 1080p source, so you will have to feed it much lower resolution than typical.

Will it work?

Maybe. The image won't look that great, but if you use two or three of them, and keep one available as a hot spare, then it may look downright impressive in terms of brightness. Image quality itself will be so-so at best.

If budget was about $10K total, then I might try to land four of these units instead:
https://epson.com/Clearance-Center/Projectors-for-Work/Pro-L1100U-Laser-WUXGA-3LCD-Projector-w-4K-Enhancement-%26-Standard-Lens---Refurbished/p/V11H735020-N

You get a full warranty, which is really good, and you get laser built in with enough total light output from 3 or 4 of them to fill the screen.

Keep in mind if you get 4:3 projectors, and project wide screen, you are throwing away about 1/3 of the brightness off screen. So, 12,000 lumens becomes 8,000 lumens max. Plus you throw away resolution. I think it is like 1024x574 or something like that. About half a million pixels on screen.

Compare that to the Epson laser 6,000 lumen model which will get you almost every bit of 6,000 lumens on screen, all the time, with over 2,000,000 pixels on screen at all times.

PLUS: The resale value if you do move away from it, will be much higher with the Epson than a very old Sanyo.

So, that would be my strongest recommendation if you are going with a multi-projector stack.



Do you think stacking two of these Epson's would work? What would I need to stack them and do I need special software to do it?
Jump to page: <<<12>>> (2 total)