I've been getting more into night and low light photo's. Most of the stuff I've done has been with 400 speed b/w pushed to 3200. Like the grainy look of it pushed, so that's not a problem. My camera only goes to 2 seconds max exposure time, so outside of town there is few things that will work. I have a Canon AE-1, and figuring out how to use it fully manually is really confusing, so usually I leave it on aperture priority. This however only lets a few times work, usually 1/30 and 1/60. I want to be able to shoot more where there's little light, but can't with only a 2 second max exposure. I was looking into an external meter, but I'm not really sure how they work, and info online is slim. Do they plug into the cable release, and work that way? Or do they just tell you how long to expose for?