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Anonymous
Set the fstop first. Depends on the lens and subject. Same as any other lighting. I don't have my FM2 anymore, so this is from memory. Set the ISO (ASA) to the highest, 32,000 as I recall. Set the shutterspeed according to the needle. Now, divide the ASA by two as you divide the shutterspeed by two (which means you double the DURATION) till you get to your particular film speed. You do all of this to stay within the meter's range. It assumes that there is at least some street lighting or a full moon or something.
ex: at 32,000, meter says 1 sec. At 16,000, you would use 2 sec., at 8,000, 4 sec., ad nauseum til you get to 400 or whatever you are using. You will probably have to use "T" shutterspeed and a watch to time the shots. Don't forget to bracket, heh heh. Next we'll discuss reciprocity failure.
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