- Nov 8, 2007
- Real Name
I am looking at what would be an ideal setup for a school projector, but it requires lens shift and I'm finding it very hard to get practical answers. I have a basic idea of what lens shift is, but I'm having difficulty getting specific answers about how a projector's specs translate into the real world performance. For a variety of reasons the best setup would be as shown in the diagram below. I would need a projector that can shift the image to the right 6.5 feet, at a distance of 19 feet from projector to an 8 foot wide screen. That involves shifting the angle of projection (at least, the apparent angle of projection) from straight ahead (90 degrees) to about 112 degrees. But when I ask people what projectors can do that, and exactly what specs regarding horizontal lens shift (ratios, maximum angle, percentages, etc.) will tell me which projector can accomplish the task, I seem to be getting no data, general data or "tap-dancing" around the issue. If I need to learn about this so I understand it myself, that is fine, just need a source of data. Appreciate any help. The only other relevant point is cost. If there is something in the $3000 range that would do this (less is better) then I would go for it. If the only way to do this is super expensive, then I'll have to figure something out, but I would prefer this arrangement in the room I have available. Doesn't have to be new, either. Good quality used or refurbished would be fine if it does the job. What manufacturer specs regarding horizontal lens shift would tell me that a projector can do this?