Re: video projector for small-ish exhibition space?

From: Ken Bawcom (email suppressed)
Date: Mon Jul 10 2006 - 19:03:05 PDT

I love DLP, much prefer it to LCD. I have a RP HD DLP monitor, with a
high speed color wheel, don't move my head much while watching, and
rarely see the rainbow effect. There is a new version, just showing up
on the market, that uses LED bulbs, and no color wheel. Even with a
single chip machine, there is no rainbow effect. Bulb life is greatly
extended. I don't know if this system is available yet in a projector
of the size you want, but it would be worth checking for.

Once I thought that most video formats should never be shown on a
theater-sized screen, because the best projection systems I had seen
all looked lousy to me, in all respects. Then I saw what a three-chip
DLP machine could do on a theater-sized screen, with just a DVD, and
was sold on DLP. Of course, three chip projectors are beyond the
capacity and price range you are looking at. I admit I haven't seen the
"latest cinema-oriented LCD projectors." I've also heard good things
about LCoS, but haven't seen it yet, either.

Ken B.

Quoting Mitsu Hadeishi <email suppressed>:

> I'll throw in some additional thoughts. I've done a lot of screenings in
> spaces about the size of what you're discussing, around 1000-2000 square
> feet, with a projection surface of up to 120 inches diagonal. A few
> thoughts:
> DLP vs LCD:
> Like you I much prefer LCD, I hate the rainbow effect. Screen door
> effect and
> poor contrast are pretty much a thing of the past with the latest
> cinema-oriented LCD projectors. My personal preference is for Panasonic
> brand projectors, they have a very nice look, very fluid, but they do
> sometimes have some quality control problems with discoloration at the top
> and bottom of their LCDs.
> 16x9 vs 4x3:
> I often project 4x3 format material on a 16x9 projector and it looks fine.
> Frankly, almost all high-contrast projectors are 16x9, so you'll likely get
> the best results from the point of view of picture quality from a 16x9
> projector. The 4x3 projectors tend to be more designed for office
> presentations and tend to be bright but have poor contrast and color
> fidelity.
> Throw range:
> My Panasonic is a "short throw" projector which may not be ideal for your
> needs. You can see throw range and screen size for most projectors on this
> site: which is also an excellent resource
> for projector reviews.
> Ambient light:
> As long as you have no ambient light the fact that the room does not have
> black walls shouldn't be a big problem.
> Mitsu
> On Monday 10 July 2006 18:22, pablo wrote:
>> Hey,
>> I posted on this about a year ago, when I was speculatively shopping for a
>> video projector. Things have gone as planned and now I am definitely
>> planning on buying a projector for exhibition in the next few months, so am
>> reposting a few questions to get some more feedback and ideas.
>> It will be used in a smallish exhibition setting (20 x 50 room) which has
>> no ambient light, but does not have black walls, so there is some bouncing
>> light from the screen itself. The screen is a da-lite da-mat. We will be
>> using dvcam or beta sp as source material, with occasional need for laptop
>> input. Primarily though, it will be from DVcam deck. Most material will be
>> in 4:3. It will all be material originating/intended to be exhibited on
>> video, not projections of films from dvds.
>> When I last posted, I had a lot of really good advice from Mitsu (thanks!)
>> but am looking for some updated advice and experiences with specific models
>> in a similar setting. I am looking for something in the mid-range I guess?
>> Not a cheap-o travel unit, and not a $15k beast. Maybe in the $3-5k range?
>> 1. dlp vs. lcd.
>> I hate the rainbow effect. I know some people can't see it but i can and it
>> drives me crazy. I have never seen a high end lcd, so am mostly familiar
>> with screen door effects and weak color/contrast. Does the faster/seven
>> segment color wheel make a big difference? I know that 3 chip dlps do, but
>> those are way out of price range. On another note, anyone know anything
>> about LCOS projectors?
>> 2. 4:3 or 16:9
>> As I can expect most people 4:3 material, so it makes sense to stick with
>> that, though I am finding that the best newer projectors with the best
>> specs and reviews are all 16:9. Some people say go 16:9 as it is future
>> proofing, some say stick 4:3 as it does better for both formats. What are
>> the drawbacks to using a 16:9 projector for 4:3 material?
>> 3. Throw range
>> Ceiling mount is hard in this space, so ideally i would find something
>> strong enough and with a lens that would project a 90-96" high image from
>> about 35-40 feet back. Size of projector itself is not so important as we
>> will not be moving this around much. tall order i know, but throwing that
>> out there.
>> Any specific ideas or models that might
>> thanks
>> Pablo
>> Cinema Project
>> Portland, Ore.
>> __________________________________________________________________
>> For info on FrameWorks, contact Pip Chodorov at <email suppressed>.
> __________________________________________________________________
> For info on FrameWorks, contact Pip Chodorov at <email suppressed>.

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For info on FrameWorks, contact Pip Chodorov at <email suppressed>.