How to choose a projector for an exhibition?

Question

Projectors

Tell me, which is better to choose a projector for the exhibition? What specs to look for? As I understand it, you need more brightness (from 4000 lm)? And another question about lenses: with what lenses can you get the maximum image size at a distance of 3 m from the screen (the width of the booth is planned to be 5 m)?

Answer 1

4k lm would be too much for a distance of three meters. If you then leave yourself, for the home, then another matter. As for the ratio of distance and diagonal, you need to look at the manual of a particular model. I, for example, on the contrary, have five meters of distance and three meters of diagonal. You can do less with the zoom knob, but nothing more.

Answer 2

3 m from the screen and 5 m wide - this already requires a special lens, like a fisheye.