The problem with rear projection is you need to project at an angle to get rid of the direct point source of light from the projector from creating a hot-spot on the image. If you could find some of this material at a reasonable cost, it might be what you're looking for.
Rear projection shower curtain free#
This provides a flat, wrinkle free surface for projection.Įdit: I remember some of the smaller, old 8 foot projection screens used in the schools had a highly reflective surface that appeared very bright while still using a fairly low power quartz iodine bulb in the projectors, probably no more than a couple hundred watts.
The material is perforated allowing some sound to pass, but still not the ideal location for speakers. Usually they are a stretched vinyl material tensioned with a bungee cord arrangement around the perimeter through grommets. Screen Goo is expensive but it really makes a big differnece to the brightness and quality of image you get.I've had to climb in behind quite a few 35mm theater screens to get at their speakers. If you can't get banner pvc then shower curtains are better than bed sheets, if you must use bed sheets then new are better than old, if you must use old then washed is better than not, if your working somewhere with UV light then washing with ecover or pure soap is better than using Daz or Persil which contain UV reactive chemicals which makes the sheets glow under UV light, further spoiling an already less than ideal image.įor front projection (if I'm allowed to mention it even though the OP didn't ask?!) then regular muslin painted with "Screen Goo" is really quite effective. Its also prone to tearing if you not careful with you attachment method. Failing that the next best thing is banner grade PVC designed for printed rear illuminated adverts (like you get on bus stops) this stuff is quite good at avoiding hotspots and can be obtained in seamless widths of upto 4 meters, its fairly expensive though unless you know a friendly print shop who will sell you offcuts. If you need to make custom screens then it is best to use a proper rear projection screen surface from someone like rosco. So the question isn't really budget related, but is a question about how well alternative fabrics work as screens? The answer to that is that for rear projection a proper screen surface makes a really big difference to the quality of image, without a proper rear projection screen your image will suffer from hotspot and a poor viewing angle. Has anyone done this in the past and did it work well? Instead of hiring a couple of screens as an experiment I am considering fabricating a pair of rear projection screens, in the style of a conference flat with thin white fabric. After all the longevity of a good screen means it will still be in use after 2 or 3 replacement projectors have been brought.Ī concurrent post has been automatically merged from this point on. Include the cost of a good screen in the original budget and allow the fundrasing people to get on with it. At which point renting a fastfold is not significantly more expensive (unless we are talking about a long run of shows, in which case stick 50p on the ticket price and you'll have the budget to buy a fastfold!)Ĭhurches and community organisations might find it harder to get the money together I suppose, but really if they are buying an AV system why hasn't the cost of a good screen been included from the outset? It is bad advice to say "oh well a bed sheet will do". That's assuming the carpenter will work for nothing.
I'd be very surprised if you can make anything approaching a neat sturdy bedsheet based screen for less than £100 if you include the cost of wood for the frame, legs and fireproofing. Scrimping on the screen doesn't make any sense to me, its like going out to buy a hi-fi and spending all your money on the amp then plugging in some knackered old speakers you got from a car boot and expecting it to sound good. Investing in a decent screen will do more to make your image look good than anything else. You can forget transporting them too (unless you have a free lorry to move them in) I have fastfolds which are over 10 years old and still going strong and looking good. The quality difference for rear projection is astounding and unless you have free access to timber and a carpenter then the cost of home made bed sheet screens is surprisingly high given how shonkey the end result is. Fastfold rental is not really expensive though is it?
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