I'm visiting the NRAO's Green Bank Telescope in early October -- within a certain proximity the facility allows only analog camera use to prevent rf interference with the mission's sensitive measurements. I have a working Canon AE-1 and a few lenses I'll use, but as I haven't shot film since the early 80's I'm looking for recommendations with an eye towards digitization rather than print output. I'm expecting to shoot both mid-day and towards sunset and will need both fast and slower-speed films, but if you were shooting this today would you go with slide or negative film? Fuji vs. Kodak vs. X? Thanks!