>>4372712The correct advice is to get an aperture priority Nikon (FE, FA, EM, FM3a) or Olympus (OM10, 20, 30, 40) and use the self timer on a tripod.
No need to overthink it, shit just works, even shooting f/11 under moonlight.
Most other cameras will fail to meter actually long exposures, which means that unless you want to shoot wide open (and there's still a fair amount of light) you're shit outta luck/left guessing with a cable release and a calculator.
Reciprocity is mostly bullshit, just ignore it.
Make sure your camera has fresh-ish batteries.
Check your exposure is finished by looking through the viewfinder and seeing if the mirror has come down, not by touching the camera. In addition to great metering, these particular cameras all pre-fire the mirror when using the self timer, reducing camera shake.
Apparently Pentacks LX's are also good for this, but I've not used one. Oly OM2's and OM4's should also be ok, but in my experience those cameras are always fucking broken so I don't ever bother using them, the cheaper 2-digit series are better cameras imho.
