Folks,
I am planning a CIH setup with a 115x49 screen of 2.35 aspect ratio and a throw of 13.5 feet using my Mitsubishi HC4000 projector. The seating will be about 13-15 feet from the screen. The new Foot Lambert calculator shows that my screen brightness is only around 9-10fL which is on the lower side considering that it will only darken as the lamp life ages.
Where I'm located (in India), I have a choice between two screen materials for a custom made fixed frame screen of the above dimensions - a high gain screen and a high contrast screen. I don't have details of the exact gain measurement, but I tried keeping a sample on top of my existing 16:9 manual pull down screen and it seemed to be slightly brighter (the brochure for my manual pull-down states its 1.0 gain but I'm not sure), but I also noticed some kind of reflective shine when looking at the material sideways. The higher contrast screen sample definitely darkens the image compared to the high gain screen, and even compared to my manual pull-down.
My question is this - if I go for a high gain screen, what are the disadvantages? Will I have a problem with the viewing angles, considering a I have a U shaped seating of spread across 11 feet width? I know that there is a great deal of info available on the screen coating, reflectiveness etc in the USA, but the suppliers here do not seem to have that much info.
I am planning a CIH setup with a 115x49 screen of 2.35 aspect ratio and a throw of 13.5 feet using my Mitsubishi HC4000 projector. The seating will be about 13-15 feet from the screen. The new Foot Lambert calculator shows that my screen brightness is only around 9-10fL which is on the lower side considering that it will only darken as the lamp life ages.
Where I'm located (in India), I have a choice between two screen materials for a custom made fixed frame screen of the above dimensions - a high gain screen and a high contrast screen. I don't have details of the exact gain measurement, but I tried keeping a sample on top of my existing 16:9 manual pull down screen and it seemed to be slightly brighter (the brochure for my manual pull-down states its 1.0 gain but I'm not sure), but I also noticed some kind of reflective shine when looking at the material sideways. The higher contrast screen sample definitely darkens the image compared to the high gain screen, and even compared to my manual pull-down.
My question is this - if I go for a high gain screen, what are the disadvantages? Will I have a problem with the viewing angles, considering a I have a U shaped seating of spread across 11 feet width? I know that there is a great deal of info available on the screen coating, reflectiveness etc in the USA, but the suppliers here do not seem to have that much info.
