tripod, and if your camera has the ability to set "aperture priority" set it to like f22 or something ridiculous. then the camera will require a very long shutter time to allow enough light to take the pic. at the same time, higher fstop equates to less light getting in... but an image with far more contrast and range. for a comparison... Ansel adams got his incredible depth and range by shooting at f64. (or therabouts... yes i am sure it may have been different for different shots...)
BTW, this is one of the big things with projection lenses. most projectors for years have had very low fstops so that they could get all the light possible to screen. hence images that were great... but had room to go. if you take same display and put a lens that is maybe f4 or f6 or something like that... it will be dimmer... but have noticeably more punch. as well it will have a greater depth of field (focus) so if a screen is curved, it needs a higher fstop lens. Barco does lots of simulator work, so they have gravitated to (on projectors that may be used in simulators) to higher fstop lenses. as well, with how much light they all have today, that sacrifice can be made.
when taking shots, you have to realize that you are competing with a dark room and a (comparatively) screaming bright image. so one will over or under expose the other. so you either have to really know what you are doing and go all manual, or just play with moving the aiming spot (where the camera does its metering) to the edge of the screen and trying options from there. this is of course if you are looking to get the room AND screen shot. just screen shot... point at screen.
ok... realized i went far too deep into lenses. i will shut up now.
just hanging out, rollin with the flow.