Vibration is not ideal for long exposure as it can cause image blur. To tackle this problem, you must invest in a good sturdy tripod and a remote shutter release or use an improvised stand. You can also use a flashlight to add elements of light into your frame. Using a lens hood to avoid lens flare is advised. Weather can always be a problem when shooting long exposures outdoors. Instead of shying away from extreme weather, carry protective covers for your gear.