I have just been given a Nikon Nikkormat FTN which i know nothing about.When i first saw it i wasn't expecting such an old school camera but it looks like a decent camera i'm guessing from 70s. It has what looks to be a very good 50mm 1:1.4 lens. I was told it needs a battery so does this mean it has a metering system? Anyone know much about them? and know if there would be an online basic manual for it. Many Thanks.