8MM-16MM FORUM WORLDWIDE

Is there a point of resonation in the distance of image projector? Can an image be too close or too far? And, what would be the factors involved that determine this distance? I know the "too far" part is true, because the light would be too dim.

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I would think it is mostly based on personal preferance and screen size. When I got my Eiki I wasn't happy at all that at 25 foot I only got a 3 foot image. I've talked about it on here before but Urbanski sold me a stock lense fitted to my projector for a 30% image increase which was fine because now I have a much larger image at a short throw due to a low voltage lamp. The other point it this, FF or scope? I use a theater scope lense at home dialed down to 25 ft throwind distance but the zoom feature on my projector is prohibited sine it'll show a false image. With my zoom lense dialed down and my projector at factory specs though (16mm Eiki) I get about a 10 foot wide image about 6 1/2 foot tall. At 25 foot throwing distance that's pretty good.

I agree with you Erik, it really just depends on how big you want your image to be. Though I don't think throw distance really matters that much to your projector's brightness, rather it's the image size. Easily shown with a zoom lens, the big image is dimmer than a small image because your lamp has to cover more space. I don't think your projector being too close is really an issue, unless it's 2-3 feet away from the screen.

So, there are many factors involved like, lamp wattage, room darkness, lens rating, and even screen type. I guess you will know when the picture is too big and back off until it at it's best image. I read that at the BFCC a 24 foot wide image was projected with an Elmo GS-1200. I think it was xenon lamp type.

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John Clancy's GS1200's have a HT lamp fitted giving a huge, clear image. When I first saw it a few years back, I honestly had to look twice to make sure I was actually watching 8mm. I'm not sure if 24ft is correct or not, but, I'm sure there are those here who will be able to elaborate on this.

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I think brightness and personal preferance are the biggest factors. With small format films you really don't need a huge throwing distance. I am projecting on a wall in my Duplex so am limited by distance. That's why for scope films I use an old, 35mm scope lense. I can take it down to optimum focus at 20 foot at the least and matches up to 8-Super8 and 16 with the stand I built for it. Doesn't work with zoom lenses but with anything stock it shows a nice big and accurate format picture. For 35mm, I use an old portable Devry sound projector that doesn't need any image enlargement since the image is huge on every level.