Projector suggestions?

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I'm looking to replace an aging Proxima projector and need some first hand advice on what to and what not to consider.

It is for classroom use, around 15 - 20 hrs/week, in subdued ambient light. It should be rugged as it may be moved from class to class. I need keystone correction!

What is the difference between LCD and DLP?

What is the meaning of ANSI Lumens as opposed to Lumens

At a recent conference I saw some really nice units - keystone, compact flash compatible, small and light, but brighter than my Proxima even before it needed to be put to pasture - but no-one could give me too much feedback on how they hold up.

Any first hand experience or help is greatly appreciated.
 
DLP technology is better than LCD (more brightness and larger resolutions)
DLP uses millions of small mirrors to show the screen, LCD (obviously =) ) uses a LCD display

I own a BenQ PB 7200.
It's a wonderful DLP projector, 2200 ANSI lumen and 2000:1 ratio contrast
That means great brightness and great colors.
 
Millions of mirrors, means more fragile or more stable? I have had issues with knuckleheads turning off the Proxima by the main switch, are the mirrored units less sensitive to residual heat?
 
Amazing demo on that site, and lots of info. I guess we're going to go with a DLP machine.

The BenQ 7200 is at the high end of our budget, the 1700 lumen BenQ is more in our range. Does anyone have any experience with other models or other brands?
 
without question I think apple is going to get into the projector market in the near future. If they can get a simple consumer friendly projector out there I think they could get that market moving. As, soon as we figure out holographic/3D projection out and can minimize it I think the picture tube/lcd will be things of the past.

Just imagine not having the lcd sticking up from your ibook/powerbook. Where the hinge is now would be a small holographic projection mechanism that could adjust to different screen sizes. from 10 to 20 inches. The opacity could also be adjust so that we couldn't see through it and other couldn't see through the back. Or I could adjust it so that I could see through it while typing but others couldn't or could have it visible both ways. The problem with television and monitors is that we have been thinking about the box to long it's time to think outside of the box.
 
mi5moav said:
without question I think apple is going to get into the projector market in the near future. If they can get a simple consumer friendly projector out there I think they could get that market moving. As, soon as we figure out holographic/3D projection out and can minimize it I think the picture tube/lcd will be things of the past.

Just imagine not having the lcd sticking up from your ibook/powerbook. Where the hinge is now would be a small holographic projection mechanism that could adjust to different screen sizes. from 10 to 20 inches. The opacity could also be adjust so that we couldn't see through it and other couldn't see through the back. Or I could adjust it so that I could see through it while typing but others couldn't or could have it visible both ways. The problem with television and monitors is that we have been thinking about the box to long it's time to think outside of the box.

your reply is useless ::sleepy::

this thread is about projectors brand and features, not about possible future products...
 
Well then move my reply to the CAFE... you have got to be joking me. Maybe 1% of all threads stay on course the entire time. The rest dip and dive through different tangents. That's what a damn forum/discussion board is about to open up the mind.

If Joe and Roberto were playing golf and talking golf and then all of a sudden the cure for cancer popped into Joe's head he would start talking about it... Roberto wouldn't tell Joe, "listen you fool we are playing golf you are going to have to go into the talking cancer room if you want to talk about saving the world, the only thing we can talk about is golf. If, you talk about something else I'll kill you"
 
mi5moav said:
If Joe and Roberto were playing golf and talking golf and then all of a sudden the cure for cancer popped into Joe's head ...

ahahah there are few little differences between cure for cancer and your previous post...

and anyway CAFE is the right place to go off-topic, not here
 
Well, I'm trying to buy a projector or two in the here and now, so the speculation of what might be and how it would be better is not really helpful. I need some real advice about tried and true machines.

Has anyone used the Dell projectors? There were a couple of them at that conference that were sweet, but do they hold up? Do I need to be looking at a $2,000+ projector for my use?
 
the help i can give you is this:

all good digital projectors (LCD and DLP) have keystone correction, that's to say BenQ, Epson, Nec, Dell and other known brands.
for use in classroom with subdued light, you don't need a very high LUMEN value, and the contrast ratio of 1000:1 should be good.

so I can advise you to look for Epson, BenQ or Nec products.
anyway I think that BenQ is the best on quality/price ratio.
be careful that if you want to use a native 16:9 projector, you have to pay more, but I think it's useless if you don't want to watch only movies (such as home theatre).

check also the price of a new lamp, 'cause its duration is about 2000h and it's quite expensive.
 
I've seen quite a few HP vp6121 (L1708A) floating around school, especially at the math department. However, you mentioned this is for classroom use. I have played around with both DLPs(all under $3500 and LCD's and I've even heard that the arts department is putting in a request for LCOS(I don't think you can get any for under $5Gs) Though DLP is a newer technology brought from texas instruments I honestly don't like it. Yes, If I were to go out and plop down 10 grand on a DLP display it would be as bright and just as good as and LCD. The problem with DLPs is that copared to LCD the sharpness and clarity is not there in mid to low range models under 5k. If you are only going to be displaying photos/pictures then it really doesn't matter. But if you are going to be presenting class notes for students to copy or any other information where a large portion is text I would chose the lcd projectors. I think your students will thank you. If you are planning on using the projector for a lot of motion video of dvd qualty than you might want to go with the DLP, if this is for a home movie theater then go out and get a good DLP (benq projectors are awesome) I think you can find some XGA, SXGA and even a few UXGA projectors with great resolution for near 2000 bucks or under. NEC also has some good products most of there VT series is under 2grand.
 
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