Possible Projector

After review a long list of different projections, CIT and Crawford College have in their stock, one certain projector stood out for having a very suitable lens ratio for close projections, since the ceiling in Blackrock Castle is quite low. It is the Epson EB-410We.

The lens ratio is between 0.48-0.65, which is quite remarkable. This means, that at a 2 meter distance, the projected image could still be about 4 meters large. It is not surprising that this particular projector is the most expensive one on the list. Here's the product brochure.

The major focus now has to be, to get a hold on one of those projectors. In total Crawford College has two of them available. If both could be gained for the project, the best possible technical setup for the projection would be achieved. With only one of them, the problem of overlaying two projections with different lens ratios will come up. Since the second image of the visualized data projected onto Stellarium would be the smaller one in that case, ways of eliminating the black background of this projection will have to be found, to avoid having a light black square on the large projection.

http://www.epson.co.uk/Projectors/Epson-EB-410We/Overview