looking for free overhead projector for give kids the world?

my company is doing a charity wall art project for give kids the world in orlando fl. looking for an old school overhead projector to project images on walls kids and parents to paint. didnt think one would be so hard to find....we are even looking for one needing work if necessary and will fix if we have to ...

if there is some way that we can aquire one for free or for shipping cost it would be greatly appreciated and would go to a wonderful cause. please feel free to contact me 407-616-1886 or email me pls

thanks
Roger

Answer
Roger - Most schools and universities have several they would like to get rid of. They are not used much anymore.

If that doesn't work, try ebay. I have seen several there for less than $50.

How to choose a good projector?

Dong B

Answer
To determince that, we would need to identify whether it is for home theatre, or business presentation use. The next question would be what room is it going to be in and what is the ambient light level in the room when the projector is in use. For business use, you would want to look for a projector with high light output and compact size for portability. You can get something like that for about $1500 and get good results. For home theatre it is a totally different ball game. If you are building a dedicated theatre, then brightness is the least of your concerns. Look for a projector that has good black level and smooth video processing. Resolution is important, but scaling/processing and the lens of the projector impact the picture quality more than resolution at the entry level projectors. Sharp and Hitachi offer some excellent projectors at the $1500 to $4500 level. Starting at $3000(USD) you can step into the world of Runco projectors (Model CL-410). Runco is the Rolls Royce of the projector world. They make projectors up to the $250,000 range and are second to none. You should also leave room in your budget for a good screen, as that plays a big role in getting good picture. There is nothing better than Stewart Filmscreens, and they are expensive but worth every penny. They make screens that are specially made for different types of projectors(CRT/LCD/DLP, Etc) and for different levels of ambient light. For rooms with total light control, their Greyhawk fabric works well for DLP/LCD projectors. The Firehawk provides good performance when you have higher levels of ambient light. Dont get too caught up on specs, and dont buy something you can't see either, look for a specialty retailer as opposed to your local best buy, as they can provide the necessary expertise to suggest the correct screen size, placement, and screen type etc.

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Anamorphic lens for projector?

Q. HI; I am still kind of new to the projector world. I purchased my projector in May 2012. The models is Panasonic PT-AE7000. My second screen is a Black Diamond Fixed Series 133" 1.4 G with aspect ratio of 2:35:1. Obviously I've done my homework. What I am curious about is anamorphic lenses. When I looked into them it made me wonder if the price justified it. Most of my Blu Ray content is in 2:35:1 and the zoom feature on the Panasonic stretches the image to fill the frame with obviously loosing resolution. I guess my question is, is it worth getting an anamorphic lens for my setup? By the way the anamorphic lenses I looked at were $2,000 -$3,000 by companies like Panamorph.

Answer
I use a Prismasonic http://www.prismasonic.com/english/description_hd5000m.shtml

Personally I think it's worth it but I've seen others argue in forums that it isn't. You don't really lose resolution by using the magnification you just lose imaging device surface area. A 2.4:1 movie is about 800 lines with the rest of the 1080p being black bars. Scaling just reorganizes those 800 lines to fill the imaging device, it's still 800 lines of information. (it becomes a simulation of 1080p) If you have plenty of lumens from your projector then try it with magnification and see how it looks. If you are marginal on lumens then every little bit helps so using the entire imaging device and an anamorphic lens would help.

Btw, the nice thing about the Prismasonic lenses is that they are adjustable. You don't have to move it out of the way for 16:9 content you just adjust the mirror positions. You can have constant image height on any aspect ratio from 4:3 to your screen aspect ratio of 2.35:1.

Edit: Btw, what are you using for scaling? With a constant image height system you're going to learn to hate the people that make Blu-Ray and DVD. The aspect ratio is all over the map, the Menu is one aspect, previews are all different aspects depending on the movie, the movie is still a different aspect. There isn't much they can do about the previews since every movie can be different but they should at least make the menu and the movie the same. You're going to want to have a one button aspect selection so you can avoid having to dig deep into menus between the top menu and the movie. I use the RS232 input of my Anthem D2 to control aspect through an IR to RS232 device from Industrologic. With RS232 commands I can instantly jump to any scaling setting. You will need to look into your device for this whether you are using the projector, the processor or an external scaler see if you can input scaling commands directly.

mk

Are you a receptor or a projector in this world?

Moneypenny

Do you, in life, feel that you take in more that there is to receive from the world (such as adventerous experiences, knowledge, cultures, entertainment, theory, anything enjoyed by the senses or the brain), or that you give out more (in thoughts expressed, ideas published, any sort of performance for others, gifts, charity, religious ideology, etc)?

Answer
you know, i often ask myself this and the answer is always the same, i give more, to much in fact...then when it's my turn to take a Little back there's no one in sight!

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