>>3231029Obviously you'll want to use slow film to get the most out of the meme long exposure effect. With color experiment with cheap shit like C200 until you're comfy, Velvia can be awesome but you need to be accurate with the exposure estimate. Among B/W Neopan ACROS is the undisputed king of long exposures but can be expensive outside Japan. I've used Tmax 100 in urbex stuff for good results on several minute long exposures. Rollei Ortho 25 and RPX 25 are both pretty good (pic related is Ortho 25). Never use Foma.
Shutter time depends on the conditions. Take a measurement with lens wide open and dial set to 1600 if need be, then calculate the exposure from there, quick and easy. Generally city scenes at night are around EV 4-6, overexpose when in doubt. Afaik X-700's shutter control goes down to 16 seconds on automatic, for longer than that you have to use bulb and a cable release. If not shooting in low light, you need to use ND filters. Don't stop the lens down beyond f/16, try to keep it at f/11 to prevent diffraction from fucking your shit up. In low light with slow film and ND's you can easily reach 30 minute exposures, make sure your tripod is up to it.